This study develops a volatile fingerprinting approach for authenticating traditional sesame oil using HS-SPME-GC-MS with GC×GC-MS-assisted compound identification. Conventional GC-MS fingerprints were evaluated by similarity analysis, while GC×GC-MS improved identification of volatile markers in authentic and adulterated samples.The method detected maize oil dilution at levels as low as 5% and sesame oil essence adulteration from 0.2%. Principal component analysis and sensory evaluation supported the fingerprint-based classification, demonstrating a reproducible strategy for detecting different types of sesame oil adulteration.<blockquote><h4>The original article</h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#sec0010">Volatile compound fingerprinting for traditional sesame oil authentication using GC-MS with GC×GC-MS-assisted identification&nbsp;</a></h4>Ruibing Jin, Fuyun Kuang, Qi Meng, Lijin Wang, Huanlu Song, Xueping Feng, Mingshan ZouJournal of Food Composition and Analysis, 2026, 155:109277<div><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1016/j.jfca.2026.109277">https://doi.org/10.1016/j.jfca.2026.109277</a></div><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/">CC-BY 4.0</a></h6></blockquote>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.<div><div><div><div><div>Sesame is cultivated worldwide for its nutritional value and flavor, especially in India, China, Myanmar, and Tanzania (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib23">Yin et al., 2021</a>). Sesame oil (SO) is an edible oil made from sesame seeds roasted at high temperatures to produce the distinct aroma and then processed using pressing, leaching, or other methods (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib5">Huang et al., 2024</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib11">Ma et al., 2022</a>). This traditional Chinese characteristic edible oil is extremely popular among consumers because of its high nutritional value and unique flavor. The unique aroma is an important indicator of quality and the main feature that distinguishes SO from other vegetable oils. SO contains fatty acids, vitamin E, and phytosterols that support cardiovascular health and anticarcinogenic processes (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib21">Xu et al., 2025</a>), along with sesamin and other lignans that impart strong antioxidant and anti-corticosteroid properties (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib24">Yin et al., 2024</a>). Owing to its nutritional and sensory values, the high retail price of SO has motivated adulteration with cheaper edible oils or SO essences (SOE). Therefore, the development of SO adulteration detection technologies such as fingerprinting is essential.Fingerprinting technology typically involves using analytical detection and data processing methods to generate chromatograms/spectra of the separate sample components simultaneously. In China, fingerprinting is primarily used in the fields of traditional Chinese medicine, biology, and food production. To ensure the quality of traditional Chinese medicines, the Chinese Pharmacopoeia Commission developed the “Chinese Medicine Chromatographic Fingerprint Spectra Similarity Evaluation System” (Fingerprint Similarity System). After importing sample chromatograms, the software generates a reference fingerprint spectrum based on the retention times and peak heights, from which the similarity between the individual samples and reference spectrum is calculated. Samples with similarities &gt; 0.900 are considered highly compatible with the reference fingerprint (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib13">National Medical Products Administration, 2000</a>). Chromatographic fingerprinting is particularly valuable for traditional SOs and reveals how variations in raw material origin or production processes influence the overall similarity of the volatile component profiles across samples. This enables more effective adulteration detection, origin discrimination, varietal differentiation, and characteristic substance analysis (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib3">Fu et al., 2023</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib14">Shi et al., 2025</a>; <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib15">Sun et al., 2023</a>).Volatile compound fingerprinting has been employed to characterize the volatile profiles of food products, enabling product discrimination and quality assessment (including identification and grading). <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib16">Sun et al. (2020)</a> analyzed volatile flavor compounds in SO and SO adulterated with soybean oil and identified characteristic compounds that can serve as indicators for adulteration. <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib18">Wang et al. (2024a)</a> used UV spectral fingerprints in combination with chemometric analytical methods to assess the quality of pressed SO with different levels of adulteration with refined SO. <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib1">Aghili et al. (2023)</a> analyzed the fatty acid compositions of diluted SO samples using an electronic nose (e-nose) and gas chromatography-mass spectrometry (GC-MS), revealing differences in the volatile profiles between the original and adulterated SO samples, which could aid in distinguishing adulterations. <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib20">Xing et al. (2019)</a> established fatty acid fingerprints capable of identifying sesame oil adulterated with rapeseed oil at levels as low as 5%. However, the sensitivity decreased for adulteration with corn oil, where only levels above 10% were detectable. Although <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib26">Zhang et al. (2016)</a> established a simple and rapid ion mobility spectrometry method to identify sesame oil adulterated with flavoring substances, its detection capability is limited to adulteration levels above 10%. However, few studies have assessed the performance of GC-MS-based fingerprinting in the concurrent detection of SO dilution and essence adulteration from volatile profiles.Although the chromatographic fingerprint similarity evaluation system was originally developed for traditional Chinese medicines, it has recently been successfully applied to edible oils. For example, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib7">Li et al. (2025)</a> established volatile fingerprints for fried pepper oils using the "Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System" and adopted a similarity threshold of 0.900 for quality discrimination. Therefore, we characterized the volatile fingerprint of authentic traditional SO using headspace solid-phase microextraction (HS-SPME) coupled with two-dimensional GC (GC×GC)-MS; co-elution issues were resolved by parallel GC×GC-MS analysis, while fingerprint similarity was evaluated using the "Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System" based on GC-MS data. By comparing this fingerprint with those of diluted SO by maize oil (MO) and sesame essence-adulterated oil, we investigated the accuracy of the fingerprint model. This study provides a scientific basis for quality control and authentication of traditional SO.<h4>2. Materials and methods</h4><h5>2.4. GC×GC-MS</h5>GC-MS (<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/gcms/library?mainauthorItems=10&amp;search=8890">8890</a>–<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/gcms/library?mainauthorItems=10&amp;search=5977B">5977B</a>, Agilent Technologies, Santa Clara, CA, USA) with a solid-state modulator (SSM) 1800 (J&amp;X Technologies, Shanghai, China) was used to qualitatively analyze the volatile compounds of SO (B. <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib17">Wang et al., 2023</a>).Volatile compounds were detected as previously described (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib2">Duan et al., 2025</a>), with some modifications. Mass spectra were acquired over the range of 40–450 m/z. Ultra-purity helium (99.999% purity) served as the carrier gas, flowing at a rate of 1.2 mL/min. A splitless injection mode was used. The oven temperature program was set to 40 °C and held this temperature for 2 min, slowly increased to 230 °C at 4 °C per min, and held at 230 °C for 5 min. The detector temperature was set to 250 °C. The quadrupole temperature and transfer line temperature were 150 °C and 250 °C, respectively. An electron impact ion source with an electron energy of 70 eV was used. The ion source temperature was set to 230 °C. A full scan mode was applied for acquisition. Two columns were used inside the GC oven: the first was a polar column, DB-wax (30 m × 0.25 mm × 0.25 μm; Agilent Technologies); the second was a mid-polar column, DB−17 (mid-polar, 1.85 m × 0.18 mm × 0.18 μm; J&amp;X Technologies). SSM1800 was placed between them for the heating and cooling stages. The SSM modulation period was 4 s. GC×GC-MS was used solely for qualitative confirmation of compounds that co-eluted in GC-MS.<h5>2.5. GC-MS</h5>Volatile compounds were analyzed semi-quantitatively by GC-MS (<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/gcms/library?mainauthorItems=10&amp;search=7890A">7890A</a>−<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/gcms/library?mainauthorItems=10&amp;search=7000B">7000B</a>; Agilent Technologies), and 2-methyl−3-heptanone was used as an internal standard. GC-MS analysis was performed using a DB-wax column (polar, 30 m × 0.25 mm, 0.25 μm; Agilent Technologies, Folsom, CA, USA) to distinguish the volatile compounds. The carrier gas (ultra-pure helium, 99.999%) was delivered at a flow rate of 1.2 mL/min. The method, heating, and mass spectrometry conditions are consistent with those described in Section 2.4. All quantitative and fingerprint similarity analyses were based on the GC-MS data obtained from this section.<h4>3. Results and discussion</h4><h5>3.2. Analysis of volatile compounds</h5>The GC×GC-MS result of JH and the GC-MS results of JH, MSO 5 (50% MO), and MSE 3 (0.6% SOE) are shown in <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#fig0005">Fig. 1</a>. A total of 85 volatile compounds were identified in the SO, MSO, and MSE samples, and 33 common peaks were identified, including ketone (1), acid (1), nitrogen-containing compounds (16), sulfur-containing compounds (7), furans (3), aldehyde (1), and phenolic compounds (4, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#tbl0015">Table 3</a>).<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Journal_of_Food_Composition_and_Analysis_2026_155_109277_Fig_1_A_and_B_respectively_represent_the_three_dimensional_chromatogram_and_two_dimensional_chromatogram_336c1e9b86.jpg" alt="Journal of Food Composition and Analysis, 2026, 155:109277: Fig. 1. (A) and (B) respectively represent the three-dimensional chromatogram and two-dimensional chromatogram of volatile compounds within the JH−1 sesame oil sample; (C)-(E) respectively represent the GC-MS results of volatile compounds within the JH−1, MSO 6 (50% MO), and MSE 3 (0.6% MSE)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Journal_of_Food_Composition_and_Analysis_2026_155_109277_Fig_1_A_and_B_respectively_represent_the_three_dimensional_chromatogram_and_two_dimensional_chromatogram_336c1e9b86.jpg 119w," sizes="100vw" width="1600" height="2107"><h5>3.3. Establishment of GC-MS fingerprints and similarity analysis of volatile substances</h5>The GC-MS volatile compound data from the test SO samples were imported into the Fingerprint Similarity System to generate chromatographic fingerprints. The reference fingerprint profile was constructed as the arithmetic mean of all profiles (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#fig0015">Fig. 3</a>). Similarity values between the sample fingerprints and reference were calculated to evaluate compositional consistency. The SO samples showed a reference fingerprint similarity of 0.910–0.993 (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#tbl0020">Table 4</a>), surpassing the 0.900 benchmark (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib10">Ma et al., 2024</a>). This demonstrates a consistent composition of key volatile components across samples with minimal quality variation, satisfying the fundamental fingerprinting and quality assessment requirements for traditional SO.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Journal_of_Food_Composition_and_Analysis_2026_155_109277_Fig_3_Reference_fingerprint_of_volatile_compounds_b17f79ad1a.jpg" alt="Journal of Food Composition and Analysis, 2026, 155:109277: Fig. 3. Reference fingerprint of volatile compounds in traditional SO established by GC-MS. Different numbers are represented the different compounds in Table 2." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Journal_of_Food_Composition_and_Analysis_2026_155_109277_Fig_3_Reference_fingerprint_of_volatile_compounds_b17f79ad1a.jpg 245w," sizes="100vw" width="1600" height="584"><h4>4. Conclusion</h4>This study established a volatile compound fingerprinting method using HS‑SPME‑GC‑MS with GC×GC‑MS‑assisted identification for the authentication of traditional sesame oil. A total of 33 common volatile peaks were identified, with pyrazines and guaiacol as major contributors. OPLS‑DA models (R²Y &gt; 0.98, Q² &gt; 0.97) demonstrated robust discrimination between authentic and adulterated oils, as well as between the two adulteration types. Compounds with VIP &gt; 1 and p &lt; 0.05 were identified as potential key markers. Selected key markers were then subjected to external standard quantification, and the obtained absolute concentrations were used to perform PCA. All calibration curves showed excellent linearity (R² &gt; 0.997), and the external standard PCA clearly separated sesame oil essence from all other samples. Fingerprint similarity analysis, validated by ROC (AUC = 1.000, optimal cutoff 0.8935), showed that adulterated samples had similarity values below 0.9, clearly distinguishing them from authentic oils. The method successfully detected maize oil dilution adulteration as low as 5% and sesame oil essence adulteration as low as 0.2%.Compared with previous methods (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib1">Aghili et al., 2023</a>; <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib18">Wang et al., 2024a</a>; <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib20">Xing et al., 2019</a>; <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0889157526004205#bib26">Zhang et al., 2016</a>), our approach uniquely detects both dilution and essence adulteration in a single workflow, achieves lower detection limits (5% for MO, 0.2% for SOE), and provides an intuitive 0.900 similarity threshold without complex chemometric modeling. While non‑destructive methods (e‑nose, IMS) are more suitable for rapid screening, our approach offers higher chemical specificity, the ability to distinguish between dilution and essence adulteration, and an intuitive similarity threshold. Current limitations include testing only maize oil and one essence type, and validation on laboratory‑prepared samples. Future work will expand to other adulterants (soybean, rapeseed oil) and blind commercial samples. Overall, this method provides a reproducible, empirically validated tool for traditional sesame oil authentication. Furthermore, external standard quantification in the present study was performed only for a selected set of key volatile markers (VIP&nbsp;&gt;&nbsp;1 and p&nbsp;&lt;&nbsp;0.05). The same approach can be extended to other compounds in future studies, enabling odor activity value (OAV) calculations for deeper insights into sensory contributions, more precise adulteration level prediction, and improved model robustness across different production batches.</div></div></div></div></div>

Volatile compound fingerprinting for traditional sesame oil authentication using GC-MS with GC×GC-MS-assisted identification

Comprehensive investigation of matrix effect evaluation approaches for reliable quantification in bioanalysis using UHPLC-MS/MS

This study compares loss-on-ignition, acid decarbonation, and combustion elemental analysis for measuring organic carbon in sediments using certified reference materials and real samples. Loss-on-ignition conversions were inaccurate, while acid washing before elemental analysis caused significant organic carbon loss and poor precision.Combustion pretreatment followed by elemental analysis provided accurate and precise organic and inorganic carbon measurements, confirmed by temperature-dependent combustion. Across more than 150 intertidal sediment samples, acid decarbonation underestimated organic carbon by 37% ± 8%, supporting combustion-based elemental analysis as the preferred approach for reliable sediment carbon determination.<blockquote><h4>The original article</h4><h4><a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#s0055">Comparing loss-on-ignition, acid decarbonation and combustion elemental analysis for measuring organic carbon concentrations – recommendations for best practice</a></h4>Robert B. Sparkes, Stuart A. Rae, Lucy McMahon, Hannah L. Mossman, David McKendry, Clare E. Dean, Graham Tinsley, Frances Fowden, Connor J. Grisdale, Hafiza Begum, Holly Hope, Charlotte McEnhill, Samuel O’Boyle, Nawal Sohail, Marvyn Wachira, Rachel M. DunkOrganic Geochemistry, Volume 218, 2026, 105215<div><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1016/j.orggeochem.2026.105215">10.1016/j.orggeochem.2026.105215</a></div><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/">CC-BY 4.0</a></h6></blockquote>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.<div><div><div><div><div>Environmental and Earth scientists frequently require measurements of carbon contents, including both the total carbon concentration (TC) and the fractions contributed by carbon from organic matter (organic carbon; OC) and carbonate minerals (inorganic carbon; IC; <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0025">Bendle et al., 2009</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0220">Radabaugh et al., 2018</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0230">Saderne et al., 2019</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0240">Scheingross et al., 2019</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0260">Smeaton et al., 2021</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0295">Vonk et al., 2012</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0315">Wood et al., 2021</a>).Accurate, precise, and affordable carbon concentration measurements are critical to the drive towards net-zero emissions, which requires monitoring, reporting and verification of carbon burial and release from an array of global environments (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0210">Post et al., 2001</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0265">Smith, 2004</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0270">Smith et al., 2020</a>). Carbon concentration measurements also underpin further analyses (e.g. normalising the concentration of individual biomarker compounds against the total organic carbon concentration, calculating elemental carbon to nitrogen ratios (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0290">van Dongen et al., 2008</a>), determining the correct sample load for isotope ratio measurements). Despite carbon concentration measurements being ubiquitous throughout multiple disciplines there is no standard approach for making these, especially determining the organic component of the sedimentary carbon (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0080">Fest et al., 2022</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0320">Young et al., 2018</a>). Different disciplines have often generated their own consensus approach, which may not align with studies from another field, even those working on similar samples and asking similar questions (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0070">Farmer et al., 2014</a>). Use of an agreed standard measurement protocol for carbon concentrations, or understanding the agreement/variability between protocols, is vital for regulatory monitoring, reporting and verification (MRV), such as the ongoing development of carbon offsetting standards that, if implemented robustly, could provide real-world benefits to climate mitigation (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0035">Bonn et al., 2014</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0045">Burden et al., 2023</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0105">Guizar-Coutiño et al., 2022</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0190">Needelman et al., 2018</a>, <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0205">Pan et al., 2022</a>). Determining a standardised, verified approach to carbon measurement is important for those performing MRV, who may not have access to advanced and/or expensive analytical instrumentation.This study compares three common methods for quantifying the total and organic carbon concentrations in sedimentary samples: i) loss-on-ignition, ii) elemental analysis combined with acid decarbonation, and iii) elemental analysis combined with organic matter combustion. The comparison focuses on assessing the accuracy, precision, and repeatability of each method, identifying their respective strengths and weaknesses, and independently confirming findings via a fourth method (temperature dependent combustion and infrared CO2 measurement) to provide recommendations for best practice. A summary review of these methods is provided below.<h4>2. Materials and methods</h4><h5>2.3. Independent testing of reference materials via TDC</h5>Standards were analysed by the supplier (Elemental Microanalysis Ltd, UK) as part of the certification process: 15/30 elemental analysis measurements gave expected values of TC, OC and IC and the uncertainty for TC, following ISO/IEC17025. These values were independently checked using an <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/icpms/library?mainauthorItems=16&amp;search=Soli+TOC">Elementar SoliTOC cube</a> instrument at the instrument manufacturer’s headquarters (Elementar Analysensysteme, Hanau, Germany), which used the TDC method. Two combustion ramps were applied, first a two-step OC and IC determination at 500 °C and 900 °C, and then a three-step programme at 400 °C and 600 °C for easily-combustible and residual OC fractions and 900 °C for IC, with three repeat measurements of each. The SoliTOC cube instrument also analysed the agricultural soil sample, again making three repeat measurements of both the two-step and three-step temperature dependent combustion protocols (see Supplementary Table 3).<h5>2.5. Elemental analysis</h5>Total carbon concentrations were measured following the protocol described in <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0180">Mossman et al. (2022)</a>. 20&nbsp;mg of either untreated or pre-treated sample was weighed into tin capsules (Elemental Microanalysis Ltd.) and analysed for carbon concentrations using a Vario EL cube elemental analyser (Elementar Ltd.). Before each analytical run, the instrument was cleaned using three blanks without oxygen and seven blanks with oxygen, and calibrated using five analyses of up to 14&nbsp;mg ethylenediaminetetraacetic acid (EDTA) standard (Elemental Microanalysis Ltd.) and three analyses of an independent Soil Standard (Clay) CRM, acquired separately to the Soil Standard (Clay) CRM used to create analytical samples for this study (Elemental Microanalysis Ltd.). Three analyses of the EDTA calibration standard were repeated after every twenty samples. Long-term drift was monitored by repeated measurements of an internal laboratory standard sample, which has been analysed since 2015. Over the course of 65 measurements across 10 instrument runs for this study the laboratory standard showed no systematic drift.<h4>3. Results and discussion</h4><h5>3.1. Testing of certified reference materials (CRMs) using temperature dependent combustion (TDC)</h5>Both two-step and three-step TDC protocols consistently measured carbon contents close to but slightly below the supplier-certified values (see <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#f0005">Fig. 1</a>). For Soil Standard (Clay), the TDC instrument under-estimated OC by 0.10&nbsp;wt% (two-step) and 0.14&nbsp;wt% (three-step) and IC by 0.15&nbsp;wt% (two-step) and 0.087&nbsp;wt% (three-step). For Soil Standard (Peaty) the TDC instrument underestimated OC by 0.26&nbsp;wt% (two-step) and 0.34&nbsp;wt% (three-step), and IC by 0.021&nbsp;wt% (two-step) and 0.090&nbsp;wt% (three-step). Relative differences for OC are small, 5.1 – 7.0% for Clay and just 1.7 – 2.2% for Peaty, but higher for IC due to the small amount of IC present in the standards (25 – 44% for Clay, 7.0 – 30% for Peaty).<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organic_Geochemistry_Volume_218_2026_105215_Fig_1_Comparison_of_organic_carbon_and_inorganic_carbon_measurements_on_two_certified_reference_materials_using_four_methods_31537717b3.jpg" alt="Organic Geochemistry, Volume 218, 2026, 105215: Fig. 1. Comparison of organic carbon and inorganic carbon measurements on two certified reference materials using four methods. Upper panel is Soil Standard (Clay) and lower panel Soil Standard (Peaty). Yellow diamonds show the certified value (Elemental Microanalysis Ltd) with manufacturer stated uncertainty in total carbon used as error bars for OC and IC (n = 30). White and grey symbols represent Loss-on-Ignition results using four different organic matter to organic carbon conversion equations (grey sqaures use the “van Bemmelen” scaling factor (Pribyl, 2010), grey circles the Craft et al. (1991) factor, white diamonds the Ouyang and Lee (2020) equation and white circles the Smeaton et al. (2022) equation. IC values for all LoI results use the C/CO2 mass fraction (Wang et al., 2011). Blue circles show the acid decarbonation and elemental analysis protocol, orange circles the combustion and elemental analysis protocol. Green and purple circles show mean results from temperature dependent combustion method (2-step and 3-step protocols respectively). Error bars represent one standard deviation after multiple measurements (n = 2 to n = 4). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organic_Geochemistry_Volume_218_2026_105215_Fig_1_Comparison_of_organic_carbon_and_inorganic_carbon_measurements_on_two_certified_reference_materials_using_four_methods_31537717b3.jpg 116w," sizes="100vw" width="2756" height="3698"><h5>3.4. Reproducibility tests</h5>Having shown that combustion coupled with elemental analysis was the most robust method for measuring OC in pure and diluted standards, the next experiment tested the reproducibility of these protocols over multiple implementations. A dried, ground agricultural soil sample was repeatedly analysed using each method (separate aliquots were measured using LoI at 500 °C and 800 °C, separate untreated aliquots were analysed via EA, separate aliquots were combusted at 500 °C and analysed via EA, and separate acid decarbonations were carried out prior to EA measurements). This required a large amount of starting material, more than was available in the CRMs. Independent external measurement of the soil sample using temperature dependent combustion (Elementar, Germany) gave mean OC&nbsp;=&nbsp;2.50&nbsp;±&nbsp;0.002&nbsp;wt% and IC&nbsp;=&nbsp;1.29&nbsp;±&nbsp;0.008&nbsp;wt% for combustion to 500 °C (n&nbsp;=&nbsp;3), whereas combustion to 600 °C gave OC&nbsp;=&nbsp;2.52&nbsp;±&nbsp;0.075 and IC&nbsp;=&nbsp;1.12&nbsp;±&nbsp;0.010&nbsp;wt% (n&nbsp;=&nbsp;3).<div>LoI showed differences in mean OC depending on the equation chosen (<a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#f0010">Fig. 2</a>). The conversions of <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0050">Craft et al. (1991)</a> and <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0200">Ouyang and Lee (2020)</a> were similar to the independent measurements (2.90&nbsp;±&nbsp;0.05&nbsp;wt% and 2.60&nbsp;±&nbsp;0.07&nbsp;wt% respectively; n&nbsp;=&nbsp;9 for each), but the equations of <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#b0255">Smeaton et al. (2022)</a> and van Bemmelen over-estimated OC (4.19&nbsp;±&nbsp;0.05 and 4.21&nbsp;±&nbsp;0.08&nbsp;wt% respectively; n&nbsp;=&nbsp;9 for each). IC estimates using the C/CO2 mass fraction conversion were higher than the expected value (1.91&nbsp;±&nbsp;0.06&nbsp;wt%, n&nbsp;=&nbsp;9). Note that the relative standard deviation for OCLoI was&nbsp;∼&nbsp;1.8%, and 3.2% for ICLoI, showing acceptable run-to-run precision.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organic_Geochemistry_Volume_218_2026_105215_Fig_2_Organic_and_inorganic_carbon_measurements_following_repeated_analysis_of_a_homogenised_soil_sample_via_multiple_methods_c5d62ece0b.jpg" alt="Organic Geochemistry, Volume 218, 2026, 105215: Fig. 2. Organic and inorganic carbon measurements following repeated analysis of a homogenised soil sample via multiple methods. Markers for each method are shown in the legend and are the same as Fig. 1. Small black circles and error bars show the mean and one standard deviation after multiple repetitions of each protocol (n = 9 for LoI, C-EA and AD-EA, n = 3 for TDC)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organic_Geochemistry_Volume_218_2026_105215_Fig_2_Organic_and_inorganic_carbon_measurements_following_repeated_analysis_of_a_homogenised_soil_sample_via_multiple_methods_c5d62ece0b.jpg 204w," sizes="100vw" width="2363" height="1815">Since OCC-EA and ICAD-EA were calculated by subtraction from mean TCEA, all data from the C-EA and AD-EA methods plotted on a straight line in <a target="_blank" rel="noopener noreferrer" href="https://www.sciencedirect.com/science/article/pii/S0146638026000902#f0010">Fig. 2</a>, representing OC&nbsp;+&nbsp;IC&nbsp;=&nbsp;TC. However, position and scatter along that line varied between the two pre-treatment techniques. OCC-EA clustered just higher than the independent measurements using TDC (2.60&nbsp;±&nbsp;0.03&nbsp;wt%, n&nbsp;=&nbsp;9). Propagating the errors in TC and IC gave a combined error estimate of&nbsp;±&nbsp;0.1&nbsp;wt% for the repeated OCC-EA measurements. ICC-EA was also close to but slightly higher than the TCD results, 1.35&nbsp;±&nbsp;0.03&nbsp;wt%. AD-EA, however, gave mean OC values of 2.00&nbsp;±&nbsp;0.12&nbsp;wt% (n&nbsp;=&nbsp;9) which was more variable run-to-run than the other methods and gave a significantly (p&nbsp;&lt;&nbsp;0.0001) lower mean OC value than the TCD results. Once again, acid decarbonation results suggested that a large amount of organic matter was lost during the acid treatment, tested further in the next section.</div><h4>4.3. Conclusions</h4>An accurate, precise, efficient, and standardised method for measuring total, organic and inorganic carbon contents of sediment samples is critical for both scientific research and environmental monitoring and reporting and verification. We rigorously tested three methods for measuring carbon contents in soils and intertidal sediments, using certified reference materials and&nbsp;&gt;&nbsp;150 sediment samples. Loss-on-ignition (LoI) is cheap and easy but showed moderate run-to-run variability and, without careful calibration, it is not accurate.Elemental analysis (EA) is an accurate and precise method for total carbon (TC) analysis. Measuring organic and inorganic carbon via EA requires pre-treatment of the sample, and this study tested both acid decarbonation and combustion preparation techniques. Acid decarbonation led to significant and variable organic carbon loss, meaning that true organic carbon concentrations are likely higher than those measured following acidification. Combustion pre-treatment was shown to efficiently remove organic matter, leading to accurate and precise results, and we would recommend making organic carbon measurements in this way.</div></div></div></div></div>

Comparing loss-on-ignition, acid decarbonation and combustion elemental analysis for measuring organic carbon concentrations – recommendations for best practice

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Science and research

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Phenomenex Prodigy Phenyl-Ethyl Column

Phenomenex's ethyl-phenyl polar column is a highly reproducible reversed-phase column for the analysis of basic, acidic and amphoteric compounds.

Highly reproducible reveresed phase columns for the analysis of basic, acidic and amphoteric compounds.<ul><li>PH-3: phenyl column with excellent aromatic and polar compound selectivity</li><li>3 μm ODS-3: high efficiency alternative to the 5 μm ODS-3 columns</li><li>Columns stable from pH 2 to 9</li></ul><h5>Other Packing material:</h5><ul><li>Prodigy ODS (2)</li><li>Prodigy C8</li><li>Prodigy ODS (3)</li></ul>

Phenomenex Kinetex Core-Shell Polar C18 LC Columns

The Kinetex® 2.6 µm Polar C18 is a core-shell based particle with a polar modified surface and a C18 alkyl phase.

The Kinetex® 2.6 µm Polar C18 is a core-shell based particle with a polar modified surface and a C18 alkyl phase. This versatile column can easily upgrade existing fully porous 5 µm and 3 µm methods to shorten run time, increase sensitivity, and even provide greater resolution with much higher efficiency levels. Combined with being 100 % aqueous stable, the Kinetex Polar C18 is a unique column that combines performance and selectivity.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>L:1 C18 with Unique Polar Retention</li><li>Compatible with 100 % Aqueous Mobile Phases</li><li>USP: L1</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_polar_C18_60ab4fb700.webp" alt="Phenomenex: Kinetex-polar-C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_polar_C18_60ab4fb700.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: 9 (effective), 9 (effective) %</li><li>Particle Size (μm): 2.6, 3</li><li>Recommended Use: Combined C18 and polar modified surface that provides polar and non-polar retention alongside 100% aqueous stability</li></ul><h4>C18 and Polar Selectivity</h4>Combined C18 and polar modified surface that provides polar and non-polar retention alongside 100 % aqueous stability.<h4>Increase Polar Retention and Hydrophobic Selectivity</h4>Increase polar selectivity without sacrificing hydrophobic selectivity with the Kinetex Polar C18. The Kinetex Polar C18 is an excellent all-purpose, 100% aqueous stable phase for use with multi-compound mixes that contain polar and non-polar compounds, or even single class methods that have closely related compounds, impurities, or metabolites.<h4>Kinetex Where Performance Meets the Right Selectivity</h4>Quickly improve the productivity and performance of your existing methods and utilize the core-shell advantage to deliver performance you need at backpressures the system can handle. Select from a variety of column selectivity to find the right phase for the application.<h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex XB-C18 Core Shell Columns

Di-isobutyl side chains differentiate this C18 column. Low ligand density and an inactive surface make this column a great hydrogen bond acceptor. 

<h4>A Unique Core-Shell Selectivity</h4>Di-isobutyl side chains differentiate this C18 column. Low ligand density and an inactive surface make this column a great hydrogen bond acceptor. This phase will demonstrate improved peak shape and increased retention of acidic compounds.<ul><li>Compatible with all Analytical HPLC/UHPLC Systems</li><li>Unique C18 Retention (USP: L1)</li><li>Improved Selectivity of Acidic compounds</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_XB_C18_Core_Shell_HPLC_Column_411f3ff1a8.webp" alt="Phenomenex: Kinetex XB-C18 Core Shell HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_XB_C18_Core_Shell_HPLC_Column_411f3ff1a8.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: 10 (effective), 10.0, null %, 10 (effective) %, 10.0 %</li><li>Surface Area (m²/g): 200</li><li>Particle Size (μm): 1.7, 2.6, 3.5, 5</li><li>Recommended Use: Superior peak shape and enhanced separation of basic compounds under neutral and acidic conditions</li></ul><h4>Selectivity for Acidic Compounds</h4>This unique C18 phase yields increased hydrogen bonding with hydrophobic selectivity‚ resulting in improved peak shape for basic compounds and increased retention of acidic compounds.<h4>Complementary Core-Shell C18 Phases</h4>Ultra-high performance columns like Kinetex will give you very narrow peaks, but without the right selectivities you are left with very narrow, overlapping peaks. The phases offered in the Kinetex column line are complementary to one another, so the spectrum of selectivity your separations require is covered.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_C18_vs_XB_C18_fe7c0252f4.jpg" alt="Phenomenex: Kinetex C18 vs. XB-C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_C18_vs_XB_C18_fe7c0252f4.jpg 165w," sizes="100vw" width="902" height="855"><h4>Manipulate Acidic and Basic Compound Retention</h4>Find the right phase selectivity for your application by investigating the diverse selectivity availability of the Kinetex Core Shell HPLC and UHPLC columns. Where reliable performance meets unique selectivity.<blockquote>Stationary phase Kinetex XB-C18 is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex Core-Shell C18 HPLC Columns

The well-rounded, all-purpose core-shell Kinetex C18 HPLC column produces high efficiencies compared to traditional, fully porous columns.

The Go-To Core-Shell Selectivity for Hydrophobic Compounds!The well-rounded, all-purpose core-shell Kinetex C18 HPLC column produces high efficiencies compared to traditional, fully porous columns. HPLC C18 columns come in various configurations to ensure outstanding performance and are recognized as the most retentive among alkyl-bonded phases. When used with UHPLC systems, the 2.6 µm size achieves similar performance to fully porous sub-2 µm particles but at significantly lower backpressure. Yielding remarkable chromatographic resolution, higher peak capacities, and greater sensitivity, the Kinetex C18 columns maximize the efficiency of every HPLC or UHPLC analysis.Advantages of Kinetex Core-Shell C18 HPLC Columns<ul><li>Compatible with all Analytical HPLC/UHPLC Systems</li><li>Four fully scalable particle sizes available</li><li>Excellent Reproducibility and Batch-to-Batch Confidence</li><li>USP: L1</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_C18_e3ad60cfa9.webp" alt="Phenomenex: Kinetex-C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_C18_e3ad60cfa9.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: 12 (effective), null %, 12 (effective) %</li><li>Surface Area (m²/g): 200</li><li>Particle Size (μm): 1.3, 1.7, 2.6, 5</li><li>Recommended Use: All-purpose hydrophobic retention and methylene selectivity</li></ul><h4>Compatibility</h4>The Kinetex C18 column is fully compatible with all UHPLC instruments, ensuring seamless integration into any lab setup. This column is designed for easy installation and optimal performance. For installation, loosen the collet, place the tool between the gold compression screw and collet for quick release, adjust the tubing to the correct port depth, and connect the Kinetex column to the end-fitting. This universal compatibility allows you to leverage the powerful sub-2 µm column technology across different systems effortlessly.<h4>Balances Retention and Performance</h4>The Kinetex C18 column offers a well-balanced C18 phase that delivers the highest level of hydrophobic selectivity compared to other Kinetex phases.<h4>Upgrade from Traditional Fully Porous to Kinetex Core-Shell</h4>Enhance your analytical method instantly by upgrading to the Kinetex C18 column for superior performance. Take advantage of the fully scalable available particle sizes of Kinetex C18 to bring improved performance to any LC system!<figure class="image"><img style="aspect-ratio:911/871;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Fully_porous_vs_Core_shell_9faba152f9.jpg" alt="Phenomenex: Fully porous vs Core-shell C18 Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Fully_porous_vs_Core_shell_9faba152f9.jpg 163w," sizes="100vw" width="911" height="871"></figure><h4>Performance with Kinetex C18 on HPLC and UHPLC Systems</h4>Quickly improve the productivity and performance of your existing methods and utilize the core-shell advantage to deliver the performance you need at backpressures the system can handle.<blockquote>Stationary phase Kinetex Core-Shell C18 is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex EVO C18 Core-Shell Columns

Kinetex EVO C18 uses patented organo-silica grafting with ethane cross-linking for stability and high pH resistance.

High pH Stable Core-ShellKinetex EVO C18 uses a patented organo-silica &nbsp;grafting process which incorporates uniform stabilizing ethane cross-linking to provide resistance to high pH attack while maintaining the mechanical strength of the core-shell particle. The Kinetex EVO C18 column provides both increased peak sensitivity and decreased overall analysis time.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>100 % Aqueous Mobile Phases Stable</li><li>pH Stable 1-12</li><li>USP: L1</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_EVO_C18_Core_shell_HPLC_Column_f92e8a7a8e.webp" alt="Phenomenex: Kinetex EVO C18 Core-shell HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_EVO_C18_Core_shell_HPLC_Column_f92e8a7a8e.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: null %</li><li>Particle Size (μm): 1.7, 2.6, 5</li><li>Recommended Use: High pH stability from 1-12 to deliver robust methods and improved peak shape for bases</li></ul><h4>Selectivity for Polar Basic Compounds</h4>A novel Core-Shell that is pH stable 1-12 that delivers robust methods and improved peak shape for bases while still providing hydrophobic selectivity.<h4>Kinetex EVO C18 column - Unique Polar Basic Selectivity</h4>With excellent performance across a large pH range, Kinetex EVO C18 columns allow you to transform chromatograms and manipulate retention order, no matter the combination of compound functionalities. Now is your chance to break the mold and let your creative LC side flourish.<blockquote>Stationary phase Kinetex EVO C18 is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex PS C18 Core Shell Columns

The Kinetex PS C18 is a high efficiency, multi interaction selectivity C18 with a positive surface modification. 

Improved Selectivity and Performance For BasesThe Kinetex PS C18 is a high efficiency, multi interaction selectivity C18 with a positive surface modification. The column demonstrates enhanced selectivity and improved peak shape for basic compounds under typical reversed phase conditions.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>100 % Aqueous Mobile Phases Stable</li><li>C18 (USP:L1) with Improved Peak Shape for Bases</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_PS_C18_Core_Shell_HPLC_Column_dd36bb172a.webp" alt="Phenomenex: Kinetex PS C18 Core-Shell Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_PS_C18_Core_Shell_HPLC_Column_dd36bb172a.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: null %</li><li>Particle Size (μm): 2.6</li><li>Recommended Use: A multi-modal, 100 % aqueous C18 column with a positive surface modification that demonstrates unique selectivity and improved peak shape for basic compounds</li></ul><h4>Selectivity for Polar Basic Compounds</h4>A multi-interaction, 100 % aqueous C18 column that provides great peak shape for basic compounds under low pH conditions and without sacrificing hydrophobic selectivity.<h4>Unique Polar Basic Selectivity</h4>The Kinetex PS C18 combines a 100 % aqueous stability C18 stationary phase, with a unique positive surface charge, and the core-shell advantage to deliver both excellent performance and reversed phase selectivity. Upgrade your traditional fully porous particle to a Kinetex PS C18 Core-Shell particle to take full polar advantage of your systems analytical capabilities.&nbsp;<h4>Take Advantage of the Right Phase for the Application</h4>While traditional alkyl C18 phases are prone to peak tailing for basic compounds due to of secondary interactions occurring at the silica surface, the surface of the Kinetex PS C18 was designed with positive charges that serve to repel basic species and deliver consistently sharper peak shape for basic compounds.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Comparison_of_Kinetex_PS_C18_and_Kinetex_C18_48598f5e57.jpg" alt="Phenomenex: Comparison of Kinetex PS C18 and Kinetex C18" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Comparison_of_Kinetex_PS_C18_and_Kinetex_C18_48598f5e57.jpg 169w," sizes="100vw" width="908" height="843"><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex Core-Shell Biphenyl Columns

Kinetex Biphenyl is a high-efficiency core-shell product capable of adding extra separation power to your analysis of non-polar and polar compounds. 

Enhanced Polar and Aromatic SelectivityKinetex Biphenyl is a high-efficiency core-shell product capable of adding extra separation power to your analysis of non-polar and polar compounds. Take advantage of multiple selectivity interaction mechanisms such as hydrophobic, pi-pi, and dipole-dipole to improve tough separations.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>Orthogonal Selectivity to C18 Phase</li><li>100 % Aqueous Mobile Phases Stable</li><li>USP: L11</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_Core_Shell_Shell_Biphenyl_HPLC_Column_df8c120cb3.webp" alt="Phenomenex: Kinetex Core-Shell Biphenyl HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_Core_Shell_Shell_Biphenyl_HPLC_Column_df8c120cb3.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: null %</li><li>Particle Size (μm): 1.7, 2.6, 5</li><li>Recommended Use: 100 % aqueous stable reversed phase chemistry with hydrophobic, aromatic, and enhanced polar selectivity</li></ul><h4>Novel Selectivity For Tough Separations</h4>Think high performance‚ enhanced retention‚ and the ability to go where a traditional C18 can’t. The Kinetex Biphenyl offers the high performance benefits of a core-shell particle with a unique stationary phase capable of becoming the go-to selectivity for reversed phase method development. Use Kinetex Biphenyl columns to get enhanced retention‚ higher sensitivity‚ and overall better results; especially for aromatic compounds.<h4>Aromatic Selectivity</h4>Compounds with aromatic ring structures offer a specific type of selectivity associated with pi-pi bond interaction. The compound’s aromaticity provides pi electrons that have the potential to interact with pi bonds, which can be found on phenyl based stationary phases. This provides a unique, orthogonal selectivity compared to a traditional C18 phase.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_Core_Shell_Biphenyl_Column_Aromatic_Selectivity_38c60ea30c.jpg" alt="Phenomenex: Kinetex Core-Shell Biphenyl Column - Aromatic Selectivity" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_Core_Shell_Biphenyl_Column_Aromatic_Selectivity_38c60ea30c.jpg 245w," sizes="100vw" width="910" height="552"><h4>Increased Separation of Aromatic Compounds Using a Biphenyl Phase</h4>The elution order of analytes can change depending upon the predominate selectivity characteristics of a HPLC or UHPLC column and the utilized mobile phase. Therefore, by altering the stationary phase or mobile phase conditions, we can observe a unique elution order and extend retention of more polar analytes.<blockquote>Stationary phase Kinetex Core-Shell Biphenyl is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex F5 Core-Shell Columns

Combine core-shell performance, multiple retention mechanisms and the Kinetex F5 column’s ability to be run in a variety of separation modes.

Maximize Retention Interactions and PerformanceCombine core-shell performance, multiple retention mechanisms and the Kinetex F5 column’s ability to be run in a variety of separation modes (reversed phase, SFC, 2D LC, and 100% aqueous) and you now have an impeccable method development tool at your disposal.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems</li><li>100 % Aqueous Mobile Phases Stable</li><li>5 Mechanisms of Retention and Selectivity</li><li>USP: L43</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_F5_Core_Shell_HPLC_Column_188a3f510f.webp" alt="Phenomenex: Kinetex F5 Core-Shell HPLC Column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_F5_Core_Shell_HPLC_Column_188a3f510f.webp 245w," sizes="100vw" width="500" height="150"><ul><li>Carbon Load: null %</li><li>Particle Size (μm): 1.7, 2.6, 5</li><li>Recommended Use: Highly reproducible pentafluorophenylpropyl phase, exceptional for halogenated, conjugated, isomeric, or highly polar compounds.</li></ul><h4>F5 - A Novel Selectivity For Tough Separations</h4>This pentafluorophenyl propyl column provides a very high degree of steric selectivity to separate structural isomers. The electronegative fluorine groups offer high selectivity for cationic compounds.<h4>Dependable F5 Selectivity</h4>While older pentafluorophenyl phases (PFP, PFPP, F5, etc.) are based on existing bonding techniques and technologies that promote irreproducibility. The Kinetex F5 was meticulously designed by Phenomenex R&amp;D and its customers, to provide consistently accurate and high performance results.<h4>Take Advantage of Multiple Interactive Mechanisms</h4>The multiple interactive mechanisms of the Kinetex F5 (pentafluorophenyl ) column successfully separate methoxybenzene isomers, while the Kinetex C18 column, which has minimal bonding interactions, cannot separate the methoxybenzene isomers. This demonstrates that columns that rely primarily on hydrophobic interactions may not be the first choice for the separation of isomeric compounds and a column with multiple interactive mechanisms may be required.<blockquote>Stationary phase Kinetex F5 is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

Phenomenex Kinetex Phenyl-Hexyl Core-Shell Columns

The Kinetex Phenyl-Hexyl column combines the performance gains of the Kinetex Core-Shell technology with balanced hydrophobic and aromatic selectivity.

Performance and Balanced SelectivityThe Kinetex Phenyl-Hexyl column combines the performance gains of the Kinetex Core-Shell technology with balanced hydrophobic and aromatic selectivity.<ul><li>Compatible with All Analytical HPLC/UHPLC Systems*</li><li>Balanced Hydrophobic and Aromatic Selectivity</li><li>Available in Three Particle Sizes</li><li>USP:L11</li></ul><figure class="image"><img style="aspect-ratio:193/210;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Kinetex_Phenyl_Hexyl_Core_Shell_HPLC_Column_a2f28d943f.jpg" alt="Phenomenex: Kinetex phenyl-hexyl Core-Shell HPLC column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Kinetex_Phenyl_Hexyl_Core_Shell_HPLC_Column_a2f28d943f.jpg 143w," sizes="100vw" width="193" height="210"></figure><ul><li>Carbon Load: 10.0, null %, 10.0 %</li><li>Particle Size (μm): 1.7, 2.6, 5</li><li>Recommended Use: Allows for greater retention and separation of aromatic hydrocarbons</li></ul><h4>Diverse Selectivity For Closely Related Compounds</h4>Aromatic and moderate hydrophobic selectivity result in the great retention and separation of aromatic hydrocarbons<h4>Phenyl Selectivity with Balanced Hydrophobic Retention</h4>Retain and separate a wide class of compounds with the unique and balanced selectivity of the Kinetex Phenyl-hexyl. The phenyl-hexyl column consistently provides reproducible and transient interactions that increase polar selectivity and deliver good chromatographic peak shape.<blockquote>Stationary phase Kinetex Phenyl-hexyl is provided in these column types: analytical and preparative</blockquote><h3>Kinetex Core-Shell Technology Columns</h3>Kinetex Core-Shell Technology delivers dramatic improvements in efficiency over conventional fully porous media, which can be leveraged to increase resolution, significantly improve productivity, reduce solvent consumption, and decrease costs. Whether you are running high-performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) methods, the Kinetex core-shell family can deliver shockingly improved performance over the current column you are using. Phenomenex designs, manufactures, and sells its very own silica and organo-silica core-shell particles.Advantages of Kinetex HPLC Columns<ul><li>Performance gains on ANY liquid chromatography system</li><li>System-to-system and lab-to-lab method portability</li><li>Improve the productivity of older, established methods.</li></ul><h4>How Does Core-Shell Technology Work?</h4>Core-shell technology in chromatography is a revolutionary approach that enhances the efficiency of HPLC systems while minimizing costs. Core-shell particles are designed with a solid, non-porous silica core surrounded by a porous outer layer. This unique structure allows for faster analyte mass transfer between the mobile and stationary phases, as diffusion occurs only through the thin, porous shell rather than the entire particle. This minimizes band broadening, leading to higher separation efficiency and sharper peaks.The consistency in size and shape of core-shell particles further enhances separation efficiency by reducing variability in analyte movement. As a result, core-shell HPLC columns provide high efficiency and resolution at lower backpressures, making them an ideal choice for labs looking to improve their existing HPLC systems without the need for costly UHPLC equipment.Core-shell technology thus offers a cost-effective alternative to upgrading to UHPLC systems, enabling labs to maximize the efficiency of their current HPLC setups. The formation of these particles through advanced sol-gel processing techniques ensures uniformity and reliability, making them a valuable tool in modern chromatography. By using the Kinetex HPLC column, laboratories can achieve faster analysis times and higher productivity while maintaining excellent separation performance.<h3>Kinetex Core-Shell Performance on Any LC System</h3>The 5 versatile particle sizes allow you to select the best fit for your instrument.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg" alt="Phenomenex: Five versatile particle sizes of Kinetex Core-Shell Technology Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_5_particle_sizes_bbed75c36f.jpg 245w," sizes="100vw" width="1341" height="333"><h3>Particle Chemistry</h3>Using sol-gel processing techniques that incorporate nano-structuring technology, a durable, homogeneous porous shell is grown on a solid silica core to create a Kinetex Core-Shell particle. This particle morphology results in less band broadening for all four sources of UHPLC band broadening compared to fully porous particles and thus delivers extremely high efficiencies.<ul><li>Optimized for Ultra-High Performance</li><li>Superior Core-Shell Quality</li><li>Core-Shell Scalability and Portability</li></ul>Kinetex particles are characterized by an exceptionally consistent size distribution, with particles being nearly monodispersed, meaning they are uniform in size. This precise uniformity plays a crucial role in minimizing variability within the column, leading to enhanced separation efficiency and sharper peaks.The nearly monodispersed nature of these particles ensures that the flow of the mobile phase remains consistent, reducing the likelihood of irregularities that can impact results. As a result, Kinetex columns deliver highly reliable and reproducible performance, making them ideal for achieving consistent analytical outcomes acrLC Kinetex Core-Shell Technolooss various applications.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg" alt="Phenomenex: Kinetex Polar C18 vs Fully Porous phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_HPLC_and_UHPLC_Kinetex_Core_Shell_Technology_Columns_Kinetex_Polar_C18_vs_Fully_Porous_phase_a2729b64e5.jpg 245w," sizes="100vw" width="1376" height="581"><h3>Core-shell vs Fully Porous</h3><h4>High-Efficiency‚ High-Density Particle</h4>The combination of a consistent, solid, high-density core along with proprietary column packing technologies in the Kinetex HPLC column ensures optimum bed structure and high column performance. This carefully designed core structure promotes uniform packing of the particles, which is essential for minimizing band-broadening effects that can arise from Eddy Diffusion.The manufacturing process of Kinetex columns is tightly controlled, focusing on factors such as particle size distribution, surface and bonding homogeneity, and packing quality. This meticulous engineering leads to uniform packing and minimized band-broadening, resulting in superior separation efficiency.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg" alt="Phenomenex: Core-shell vs Fully Porous.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Core_shell_vs_Fully_Porous_60601b6fa3.jpg 245w," sizes="100vw" width="904" height="506"><h3>Expand Your Core-Shell Selectivity Toolbox</h3>Kinetex core-shell particle LC columns deliver exceptional performance enhancements across any LC system, offering unmatched efficiency and resolution. With a choice of 11 diverse stationary phases, these columns cater to a wide range of chromatographic applications, ensuring optimal separation for various analytes.Additionally, the availability of five versatile particle sizes allows for precise method tailoring, enabling both high-speed and high-resolution separations. Whether you're using HPLC or UHPLC systems, Kinetex columns provide the flexibility and performance needed to achieve superior analytical results.<h3>Top 5 Pros of Kinetex Core-Shell Technology</h3><ul><li>Productivity: Kinetex Core-Shell Technology significantly enhances method productivity with minimal effort. By simply replacing traditional, fully porous columns with Kinetex HPLC columns, users can achieve better resolution, sensitivity, and overall productivity without extensive method redevelopment. This easy switch allows for immediate improvements in chromatographic performance, making it a cost-effective upgrade to existing methods.</li><li>Portability The Kinetex Core-Shell columns are available in a range of particle sizes (1.3 µm to 5 µm), which ensures method portability across different HPLC and UHPLC systems. This scalability allows for consistent retention and selectivity across various particle sizes while accommodating different backpressure levels, making it easier to transfer methods between instruments.</li><li>Performance Kinetex Core-Shell Technology delivers superior chromatographic efficiency compared to fully porous particles. This efficiency boost enables chromatographers to maximize the performance of their HPLC/UHPLC systems, ensuring optimal results with higher resolution and sharper peaks, even under similar method conditions.</li><li>Phases With 11 unique phase selectivities available, Kinetex Core-Shell Technology offers unmatched versatility for method development. This wide selection of phase chemistries allows for tailored separations and simplified optimization, ensuring the best possible results for a wide range of applications.</li><li>Pressure Kinetex Core-Shell columns provide higher efficiency at lower system backpressures compared to fully porous columns. This allows users to achieve superior chromatographic performance on conventional LC instruments without the need for ultra-high-pressure systems, making it a practical choice for routine analyses.</li></ul>

KNAUER Eurospher II 100 Si (U)HPLC Columns for NP & HILIC (USP L3)

Unmodified Silica gel materials were the first ones used for chromatography. This is the reason the mode is called "normal phase" (NP).

Si columns for Normal Phase and HILIC applications (USP L3)Unmodified Silica gel materials were the first ones used for chromatography. This is the reason the mode is called "normal phase" (NP). They are still used in HPLC, although reversed phase (RP) is by far the most often used HPLC mode today.<h5>A wide range of porous Si materials are available, characterized by:</h5><ul><li>Surface area</li><li>Pore size</li><li>Particle size</li><li>Purity</li><li>Metal content</li></ul><h5>Properties</h5><ul><li>Separation mechanism: Hydrophilic interactions</li><li>Ultra pure, spherical high performance HPLC phase based on silica gel</li><li>No modification, no endcapping, with 0 % carbon content</li></ul><h5>Key features</h5><ul><li>High-class HPLC phase perfectly suited to take on routine analyses as well as the most ambitious chromatography tasks, outstanding mechanical and chemical stability.</li></ul><h5>Recommended application areas</h5><ul><li>Wide range of different applications, i.e. SEC (size exclusion chromatography) but also for normal phase HPLC and HILIC; good choice for analytical and preparative purposes to separate polar compounds.</li></ul><blockquote>Tip: Normal phase (NP) stationary phases have been the first phases for chromatography and that is why their properties of polarity were determined as ’’normal’’. The stationary phase of a NP column has polar properties and is commonly used with nonpolar solvents as hexane or heptane. The other way round a reversed phase (RP) column has covalent charcteristics and is used with more polar eluents, like mixtures of acetonitrile and water.</blockquote>Stationary phase Eurospher II 100 Si is provided in these column types: analytical, semi-preparative and preparative.Eurospher II 100 Si Analytical Columns are available with these parameters:<ul><li>Column length (mm): 50, 100, 150, 250</li><li>Column ID (mm): 3, 4, 4.6</li><li>Particle size (µm): 3, 5</li></ul>Eurospher II 100 Si Semi-Preparative Standard Columns are available with these parameters:<ul><li>Column length (mm): 30, 50, 125, 150, 250</li><li>Column ID (mm): 8, 16</li><li>Particle size (µm): 5, 10</li></ul><h3>KNAUER (U)HPLC Columns</h3>Widest range of HPLC and UHPLC columns for all separation modes and applications.<ul><li>Safe Investment: Robust and reliable columns for attractive price&nbsp;</li><li>Separation Mode: Reversed Phase, HILIC, Normale</li><li>Simplicity: Easy purchase via our online store with fast delivery</li><li>Application: All-rounder for research or highly specialised for high-throughput analysis? We have the best column for your requirements.</li><li>Flexibility: Wide selection of column and particle sizes, for (U)HPLC applications up to 1000 bar</li></ul>KNAUER offers the perfect column for any small molecule separation. No matter which separation mode, molecule and the mobile phase, we offer a suitable (U)HPLC stationary phase. Choose from a wide range of modifications, particle sizes and column dimensions to suit your application. To elongate the lifetime of your column, you can choose to use a suitable precolumn.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp" alt="KNAUER: KNAUER (U)HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp 182w," sizes="100vw" width="787" height="674">

Products from category Analytical HPLC columns - page 13

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