What do chromatography, gemstones, rainbows and even cats have in common? At KNAUER’s latest Girls’ Day in Berlin, 15 schoolgirls explored exactly that question. Through a series of hands-on activities, they discovered how HPLC instruments are developed and manufactured, learned the basics of spectroscopy and chromatography, and met women working across science, engineering, product management and company leadership.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_1_A_student_observes_the_rainbow_spectrum_of_white_light_8ef24d9700.jpeg" alt="KNAUER: Figure 1 A student observes the rainbow spectrum of white light." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_1_A_student_observes_the_rainbow_spectrum_of_white_light_8ef24d9700.jpeg 228w," sizes="100vw" width="624" height="427"><h4>A Day to Explore STEM Careers</h4>Girls’ Future Day, widely known as Girls’ Day, gives schoolgirls across Germany an opportunity to experience professions in which women are still underrepresented. Instead of learning about careers only in the classroom, participants can spend a day inside companies, laboratories and technical workplaces and see what these jobs actually involve.KNAUER has participated in Girls’ Day for 17 years, and demand for places has become consistently high. The attraction is easy to understand: visitors do not simply listen to presentations. They can experiment, assemble components, talk directly with employees and discover how science and engineering are applied in everyday work.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_2_Hands_on_experience_and_wonder_at_Girls_Day_2025_98da525b3a.jpg" alt="KNAUER: Figure 2 - Hands-on experience and wonder at Girls’ Day 2025: 13 interested girls assembled pump heads, learned what HPLC is, and how such equipment is developed" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_2_Hands_on_experience_and_wonder_at_Girls_Day_2025_98da525b3a.jpg 125w," sizes="100vw" width="1024" height="1280"><blockquote>“That moment when the girls realize, with sparkling eyes, just how cool science can be—that’s exactly why I love Girls’ Day. It’s worth every bit of the effort!” – Dr. Kristin Folmert, chemist and product manager at KNAUER</blockquote><h4>From Laboratory Instruments to a Wide Range of Careers</h4>At KNAUER wissenschaftliche Geräte GmbH, laboratory instrumentation is designed, developed, manufactured, tested and marketed from Berlin for customers around the world.That requires far more than chemists alone. The company brings together people working in mechanical production, logistics, media design, mechatronics, software development, science, product management and company management.For the participating girls, this offered a chance to meet women following very different career paths and to see that a technology company can provide opportunities across many disciplines.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_3_The_girls_learned_what_chromatography_and_HPLC_are_a7db4e8eb3.jpg" alt="KNAUER: Figure 3 - The girls learned what chromatography and HPLC are, what they are used for, and how a UV/Vis detector works. They then built their own handheld spectroscope and experimented with white light and various color filters." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_3_The_girls_learned_what_chromatography_and_HPLC_are_a7db4e8eb3.jpg 245w," sizes="100vw" width="1024" height="609"><h4>Women in Science and Technology at KNAUER</h4>Women account for 37% of KNAUER’s workforce, with particularly strong representation in scientific and management positions. The company reports a gender pay gap of 1.84% for 2026, compared with an unadjusted German gender pay gap of 16% in 2025. Women also hold 44% of leadership positions at KNAUER, including several positions performed on a part-time basis.The company emphasizes practical measures intended to make technical careers accessible to a wider range of employees. These include flexible work models, support for childcare and technical solutions such as indoor cranes for handling heavy components.During Girls’ Day, these policies become less abstract. Participants meet scientists, engineers and managers who can describe how they entered their professions and how their careers developed.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_4_During_a_visit_to_the_equipment_development_department_scientist_Thy_Vu_talks_about_her_career_at_KNAUER_3bd9af2786.jpg" alt="KNAUER: Figure 4 - During a visit to the equipment development department, scientist Thy Vu talks about her career at KNAUER. She wrote her bachelor’s thesis here and then worked as a student assistant in development during her master’s program. Subsequent to completing her master’s degree, she accepted a permanent position at KNAUER in the development department. Today, she is developing the pump drive of the future and tells the fascinated girls which gemstones are used in such a pump (sapphires and rubies)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_4_During_a_visit_to_the_equipment_development_department_scientist_Thy_Vu_talks_about_her_career_at_KNAUER_3bd9af2786.jpg 245w," sizes="100vw" width="1024" height="614"><h4>Role Models and First-Hand Career Insights</h4>Several KNAUER employees are also involved in <a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/groups/13080121/">International Women in Chromatography</a>, a network supporting women and non-binary professionals working in chromatography.Throughout the day, the students encountered women at different stages of their careers: from university students and young scientists to experienced product managers, developers and Managing Director Alexandra Knauer.The message was not simply that STEM careers are available to women, but that scientific and technical work can take many forms. Networking, curiosity, willingness to ask questions and confidence in one’s own abilities were recurring themes throughout the event.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_5_A_girl_works_intently_and_with_great_care_on_her_spectroscope_ed94a2a049.jpg" alt="KNAUER: Figure 5 - A girl works intently and with great care on her spectroscope. None of the girls glance at their phones; they are all polite, and many feel comfortable asking questions openly. We are very excited about this generation of bright young talents." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_5_A_girl_works_intently_and_with_great_care_on_her_spectroscope_ed94a2a049.jpg 127w," sizes="100vw" width="405" height="496"><h4>Learning HPLC by Doing</h4>The scientific part of the day began with the basic principles of high-performance liquid chromatography (HPLC).To make separation easier to understand, the group first experimented with light and heavy balls inside a large glass column. From there, the discussion moved to the individual components of an HPLC system.One analogy compared an HPLC instrument with the human body: the pump moves liquid much like the heart circulates blood, separation takes place in the column, and the detector observes the separated compounds through their interaction with light.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_6_The_HPLC_and_its_various_modules_depicted_as_human_organs_855ab67aac.jpg" alt="KNAUER: Figure 6 - The HPLC and its various modules, depicted as human organs." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_6_The_HPLC_and_its_various_modules_depicted_as_human_organs_855ab67aac.jpg 245w," sizes="100vw" width="1210" height="670"><h4>Building a Spectroscope and Seeing Light Differently</h4>Each participant then constructed a small handheld spectroscope.The task required both careful reading and manual dexterity, particularly when fitting the delicate lens. Working together, the girls quickly developed better ways to complete the assembly—a small example of how real development projects evolve through cooperation and continuous improvement.Once finished, the spectroscopes revealed the spectrum of white light as a rainbow together with visible spectral features. Colored filters placed between the light source and the spectroscope then demonstrated how absorption changes the observed spectrum.This connected the practical activity with concepts introduced earlier in the day: visible light, wavelength, absorption and how optical signals eventually become peaks in HPLC detection.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_7_A_11_year_old_girl_gazes_fascinated_at_her_rainbow_4f713de2ae.jpg" alt="KNAUER: Figure 7 - A 11-year-old girl gazes fascinated at her rainbow and notices that while all the colors are visible, some areas are brighter while others are quite dark. “Is the spotlight not pure white, or is my spectroscope absorbing light?” Such clever questions arise when girls are encouraged to explore things for themselves." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_7_A_11_year_old_girl_gazes_fascinated_at_her_rainbow_4f713de2ae.jpg 200w," sizes="100vw" width="1024" height="800"><h4>Inside Instrument Development and Manufacturing</h4>The program then moved from theory into KNAUER’s production environment.In the mechanical manufacturing area, participants saw CNC machines and robotic systems producing precision components for laboratory instruments. They could watch parts of an HPLC pump head taking shape directly from metal components and learn why accurate machining is essential for reliable instrument performance.<blockquote>“This is like science fiction!” – Mariko Stahr, Girls’ Day participant</blockquote>In the development department, engineer Thy Vu demonstrated her work on pump-drive technology and explained how developers investigate parameters such as motor torque. The girls were also able to handle some of the materials used inside an HPLC pump.One detail generated particular interest: components made from sapphire and ruby. This opened a discussion about material properties, crystal structures and why instrument developers benefit from understanding chemistry as well as engineering.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_8_Thomas_Mueller_explains_to_the_girls_how_CNC_machines_mill_the_housing_for_a_pump_head_bd714b9b50.jpg" alt="KNAUER: Figure 8 - Thomas Müller explains to the girls how CNC machines mill the housing for a pump head from a block of metal and why precision is crucial in this process. On the left is one of the robotic arms that continues working even at night, allowing employees to focus solely on daytime work and more demanding tasks. " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_8_Thomas_Mueller_explains_to_the_girls_how_CNC_machines_mill_the_housing_for_a_pump_head_bd714b9b50.jpg 245w," sizes="100vw" width="1278" height="468"><h4>Assembling a Real HPLC Pump Head</h4>The final practical station brought the participants into instrument assembly.Each girl was given the opportunity to assemble a pump head herself. The work proved more demanding than it initially appeared, requiring both hands to coordinate several components accurately.With guidance from KNAUER training supervisor Ronald Berger, the participants completed their assemblies before each pump head underwent a final technical check to verify that the pistons moved correctly.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_9_A_girl_is_screwing_the_check_valve_with_the_check_valve_holder_i_cf84fb4375.jpg" alt="KNAUER: Figure 9 - A girl is screwing the check valve with the check valve holder into the pump head. Everything is then tightened using a torque wrench." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_9_A_girl_is_screwing_the_check_valve_with_the_check_valve_holder_i_cf84fb4375.jpg 179w," sizes="100vw" width="376" height="327">The day concluded with lunch and another opportunity to speak with Managing Director Alexandra Knauer, who has long supported initiatives intended to improve the visibility of women and encourage young people to consider STEM careers.Participants received certificates and “I love HPLC” bags with small gifts before leaving KNAUER with their own impressions of what a future in science and technology could look like.<h4>So Where Do the Cats and Rainbows Come In?</h4>The rainbow seen through a spectroscope provides a simple demonstration of the same basic optical principle used in many analytical measurements.When white light is dispersed, its different wavelengths become visible as a spectrum. If part of that light is absorbed by an object or substance, the resulting spectrum changes. Measuring which wavelengths are absorbed can therefore reveal information about the material interacting with the light.The article illustrates the idea with a deliberately simple example: a cat sitting in front of a light source may absorb most of the light, but its silhouette still provides information about what is blocking the beam.Similarly, analytical detectors can obtain information about molecules by measuring how they interact with light.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_10_The_cat_actually_absorbs_all_the_light_af8452f58d.jpg" alt="KNAUER: Figure 10 - The cat actually absorbs all the light, but its outline still lets us know that there’s a fluffy cat sitting there. In HPLC, a[SD5.1] molecule’s light absorption also tells us a great deal about its identity. " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_10_The_cat_actually_absorbs_all_the_light_af8452f58d.jpg 236w," sizes="100vw" width="1024" height="676">The same principle also helps explain the colors of evening sunlight. When sunlight travels through a longer path in the atmosphere, shorter-wavelength blue light is scattered more strongly, leaving proportionally more of the longer-wavelength red and orange light reaching the observer.For the students at KNAUER, concepts such as these transformed HPLC and spectroscopy from abstract scientific terminology into something they could build, observe and discuss themselves.And that is ultimately the purpose of Girls’ Day: to show young people that science and technology are not distant subjects confined to textbooks, but fields full of practical questions, creative problem solving and possible future careers.

Girls Just Wanna Have Fun With KNAUER – A Girls' Day Full of Rainbows

Our Library never stops expanding. What are the most recent contributions to LabRulezLCMS Library in the week of 21st September 2026? Check out new documents from the field of liquid phase, especially HPLC and LC/MS techniques!<blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library">SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT LCMS AND RELATED TECHNIQUES</a></blockquote><blockquote>👉 Need info about different analytical techniques? Peek into <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library">LabRulezGCMS</a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library">LabRulezICPMS</a> libraries.</blockquote>This week we bring you application notes by KNAUER and Shimadzu, technical note by Thermo Fisher Scientific and poster by Waters Corporation / SOFT!<h3>1. KNAUER: Precise Catechin Profiling in Various Types of Tea</h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/VFD_0198_knauer_precise_catechin_profiling_in_various_types_of_tea_d607cde5ba.pdf">Full PDF for download</a></li></ul>Fresh tea leaves contain high concentrations of catechins, which have many beneficial properties. These include antioxidant, anti-inflammatory as well as antimicrobial effects, and it is even claimed that they have the potential to prevent cancer [1]. In addition, the taste and mouthfeel of a tea strongly depend on its catechin profile. The catechin content of tea leaves varies based on cultivation area, age and variety, as well as on how they are fermented, processed and packed. Therefore, the catechin content is an important marker for the quality of tea.&nbsp;The analysis of catechins can be challenging. The structural similarity of the catechin isomers and other closely related compounds result in similar behavior and a difficult separation (Fig. 1). Catechins possess many phenolic hydroxyl groups, which are prone to secondary interactions, like hydrogen bonding. Classical as well as highly endcapped C18 columns offer only limited retention and selectivity for catechins. Therefore, the KNAUER column portfolio has been expanded to include a pentafluorophenyl (PFP)-modified stationary phase (Eurospher II 100-3 PFP column 50 x 2 mm). It offers optimal separation of the catechins based on hydrophilic, hydrophobic and π-π-interactions. The column withstands acidic eluents (pH 1.5–10) as well as 100 % aqueous conditions, which are beneficial for the retention of hydrophilic compounds. The KNAUER Gradient Prediction Tool assisted with the challenging method development which is described in detail in the TechNote “The Gradient Prediction Tool: Method Development for the Separation of Catechins from Tea”. Here, the application of the optimized method for the identification and quantification of catechins in tea extracts is shown. The seven compounds specified in ISO-14502-2 (2005), as well as two additional catechins known as (+)-gallocatechin and (–)-gallocatechin gallate, were quantified.<h4>MATERIAL AND METHODS</h4><ul><li>Pump: <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2374">P8.1L</a>; high pressure gradient&nbsp;</li><li>Liquid Handler: <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1454">LH 8.1L </a>With FastWash station, and Robotic cooler. Loop: 20 µl.</li><li>Thermostat: <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2376">CT 2.1L&nbsp;</a></li><li>Detector: <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2424">DAD 6.1L&nbsp;</a></li><li>Flow cell: Analytical LightGuide flow cell (50 mm, 6 µl)&nbsp;</li><li>Software: ClarityChrom 10.1</li></ul><h4>CONCLUSION&nbsp;</h4>The application note demonstrates the reliable separation and quantification of catechins and caffeine in tea extracts using the new KNAUER PFP column. Using an optimised gradient predicted with the KNAUER Gradient Prediction Tool, nine tea-related compounds were separated in under 23 minutes. The tested tea samples showed different catechin content highlighting how strongly tea composition depends on the product type and processing.<h3>2. Shimadzu: New Derivatization Method for Quantitative Analysis of Δ⁹-THC-COOH in Urine</h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/an_01_01215_en_c98174629b.pdf">Full PDF for download</a></li></ul><h5>User Benefits</h5><ul><li>The risk of limited availability of stable isotope-labeled standards can be avoided by synthesizing internal standards through derivatization.&nbsp;</li><li>The derivatizing agent IPPAH and its corresponding stable isotope IPPAH-d6 can be synthesized easily and inexpensively from acetone (or acetone-d6).&nbsp;</li><li>This approach achieves sufficient sensitivity and quantitative accuracy for the determination of Δ⁹-THC-COOH in urine.</li></ul>In Japan, the Cannabis Control Act and the Narcotics and Psychotropics Control Act were amended in December 2024. While cannabis was legalized for industrial and medical uses, stricter cannabis regulations have been enacted to prevent harm from its abuse. The primary psychoactive cannabinoid, delta-9-tetrahydrocannabinol (Δ⁹-THC), is extensively metabolized in the body and is excreted mainly in urine and feces as 11-nor-9-carboxy-THC (Δ⁹-THC-COOH) and its glucuronide conjugates. Consequently, Δ⁹-THC-COOH must be analyzed to confirm cannabis use. For LC-MS/MS quantitation, the stable isotope-labeled internal standard Δ⁹-THC-COOH-d3 is commonly used to correct for matrix effects. However, most suppliers of stable isotope standards are located in the U.S., making these standards difficult to obtain due to import procedures. Furthermore, there may be additional importrelated supply risks for stable isotope standards in the future.&nbsp;This Application News describes a technique for quantitating Δ⁹-THC-COOH using an internal standard that is synthesized easily and inexpensively by derivatization with IPPAH (1- isopropylpiperidine carboxylic acid hydrazide), which characteristically reacts with carboxyl groups, and its corresponding stable isotope IPPAH-d6.<h4>Analysis Conditions&nbsp;</h4>LC-MS/MS analysis conditions are shown in Table 1. The <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/lcms/library?mainauthorItems=1&amp;search=Nexera+XR">Nexera XR</a> and <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/lcms/library?mainauthorItems=1&amp;search=LCMS-8050">LCMS-8050 systems</a> were used.<h4>Conclusion&nbsp;</h4>Derivatization with IPPAH and its stable isotope analog, IPPAHd6, enabled the simple and inexpensive preparation of an internal standard. This approach provides sufficient sensitivity and accuracy for the determination of Δ⁹-THC-COOH in urine. Most stable isotope-labeled standards are supplied by foreign manufacturers, creating a risk of delays or difficulties in procurement due to import/export regulations. By synthesizing the internal standard through derivatization, this risk can be minimized.<h3>3. Thermo Fisher Scientific: High-throughput quantitative proteomics with Evosep Eno and the Orbitrap Astral Zoom Mass Spectrometer</h3><ul><li>Technical note</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/tn_004544_ov_astralzoom_evosepeno_htp_proteomics_tn004544_na_en_f31db9084e.pdf">Full PDF for download</a></li></ul>High-throughput proteomics is a critical enabling technology for large clinical studies, high-content drug screening, and systems biology research, allowing for comprehensive and quantitative analysis of complex proteomes across large sample cohorts within practical timeframes. As biological and translational studies expand in scale and complexity, the ability to generate deep and reproducible proteome measurements across thousands of samples has become increasingly essential for robust biomarker discovery, network-level systems modeling, and downstream analyses. In these contexts, accurate and precise protein quantitation must be maintained without sacrificing throughput, placing stringent demands on the performance and robustness of both LC instruments and mass spectrometers.&nbsp;To meet these increasing analytical demands, the Evosep Eno was developed as a high‑throughput LC system that combines robustness, ease of use, and highly reproducible chromatography. It offers six standardized methods: 30, 60, 100, 200, 300, and 500 samples per day (SPD), allowing users to select the throughput that aligns best with their study goals.1 These predefined methods ensure consistent gradient delivery, highly stable retention times, and reproducible system performance across instruments and laboratories.2 By reducing LC‑related variability and simplifying everyday operation, the Evosep Eno offers a strong and consistent foundation for large‑scale proteomics workflows, particularly those relying on short gradients and high reproducibility required for downstream quantitative analysis.<h4>Experiment</h4><h5>Instrumentation&nbsp;</h5><ul><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/lcms/library?mainauthorItems=291&amp;search=evosep+eno">Evosep Eno&nbsp;</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1959">Orbitrap Astral Zoom Mass Spectrometer&nbsp;</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2464">Thermo Scientific™ EASY-Spray™ Ion Source&nbsp;</a></li><li>Evosep™ Pod for EASY-Spray Ion Source</li></ul><h5>Software&nbsp;</h5><ul><li>Biognosys Spectronaut® 19.7 software&nbsp;</li><li>MacCoss Lab Software Skyline-Daily V25.1</li></ul><h4>Summary&nbsp;</h4><h5>Seamless and easy integration for high-throughput proteomics&nbsp;</h5>Evosep Eno integrates seamlessly with the Orbitrap Astral Zoom Mass Spectrometer, supported by EASY-Spray source-compatible columns, emitters, and the Evosep Pod column oven for a simple, streamlined, high-throughput workflow.&nbsp;<h5>Deep proteome coverage at 500 SPD&nbsp;</h5>Optimized MS parameters for the standard 500 SPD Evosep Eno gradient enabled identification of more than 6,500 protein groups and 71,000 modified peptides from three replicates of 200 ng Pierce HeLa Digest/PRTC Standard.<h5>Reproducible quantitation across standard gradients&nbsp;</h5>Across all standard Evosep Eno gradients, the workflow delivered highly reproducible label-free quantification, with median protein group %CVs at or below 5.2%, while identifying more than 10,500 protein groups and 190,000 modified peptides from five replicates of 200 ng Pierce HeLa Digest/PRTC Standard at 30 SPD.&nbsp;<h5>Robust chromatography at ultra-high throughput&nbsp;</h5>Chromatographic performance remained stable and robust at 500 SPD, with nearly 100 consecutive runs showing PRTC retention time standard deviations below 0.4 seconds and a median of 6 DPPP.&nbsp;<h5>Strong linearity for confident quantitation&nbsp;</h5>Quantitative performance remained strong at 500 SPD, with PRTC peptides showing excellent linearity across the active gradient (R² &gt;0.98) when spiked from attomolar to femtomolar concentrations.<h3>4. Waters Corporation / SOFT: COMPARATIVE EVALUATION OF HIGH RESOLUTION MASS SPECTROMETRY ACQUISITION STRATEGIES FOR THE DETECTION AND ANALYSIS OF ILLICIT DRUG SUBSTANCES</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/720009592_0bd2b5ee6a.pdf">Full PDF for download</a></li></ul><div><div><section><div><div><div><div><div><div>The poster compares two high-resolution time-of-flight mass spectrometry acquisition strategies for toxicology screening: targeted Tof-MRM and data-independent Tof-MSE, both implemented on a Waters <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1148">Xevo MRT MS</a> coupled to an <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/199">ACQUITY UPLC I-Class FTN PLUS System</a>. The aim was to determine whether these approaches could meet routine service requirements for drug testing while also broadening the number of substances that can be detected beyond conventional targeted panels. Urine samples were prepared across a wide concentration range for 20 target analytes, and the methods were also applied to 20 anonymized authentic urine samples.Both workflows used a 15-minute LC separation on an <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1952">ACQUITY HSS C18 column</a> under positive electrospray ionization. In the targeted Tof-MRM mode, selected precursor ions were isolated and fragmented, with quantifier and qualifier ions monitored for sensitive quantitative analysis. In contrast, Tof-MSE operated in a data-independent mode, alternating between low and elevated collision energies to collect accurate-mass precursor and fragment-ion information for a broad range of compounds. Data were processed in the waters_connect platform using MS Quan for Tof-MRM and UNIFI with the Waters Toxicology Library, containing more than 2,100 drugs and metabolites, for Tof-MSE.The targeted Tof-MRM method provided the highest sensitivity, with limits of detection ranging from 0.05 to 0.5 ng/mL in fortified urine. The broader Tof-MSE workflow achieved LODs of approximately 0.5 to 5 ng/mL. When both strategies were applied to authentic urine samples, they showed excellent qualitative agreement. Importantly, Tof-MSE detected additional compounds outside the predefined target panel, including commonly encountered medications, benzodiazepines, antidepressants, and illicit drug substances that would not have been captured by the targeted method alone.Overall, the study shows that Tof-MRM can deliver sensitivity comparable to conventional tandem-quadrupole LC-MS/MS for targeted urinary drug analysis, while Tof-MSE adds broader sample characterization and retrospective screening capability. Used together, the two acquisition strategies provide a flexible approach that combines sensitive quantification of predefined analytes with expanded screening for unexpected or previously untargeted drug substances in complex biological samples.</div></div></div></div></div></div></section></div></div>

News from LabRulezLCMS Library - Week 39, 2026

Proper care and maintenance of HPLC columns are essential for getting accurate results and saving on replacement costs. Extending the HPLC column life not only ensures consistent performance but also reduces downtime and the need for frequent replacements.Routine maintenance is equally essential for sustaining column functionality. Correct handling of the column is paramount, ensuring strict compliance with the manufacturer’s specifications regarding pressure, pH, flow rate, and temperature.In the next section, we will explore these best practices in greater detail, offering further guidance on essential HPLC column maintenance strategies. Whether you’re working in a high-throughput lab, or conducting occasional analyses, these strategies will help you get the most out of your <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products?category=48&amp;manufacturerItems=50">HPLC columns</a>.<h3>Essential Guidelines for Extending HPLC Column Life</h3>By adopting these simple yet effective practices, you can greatly extend the HPLC column life while ensuring reliable, high-quality results in your analyses.<h4>Proper Column Handling</h4>HPLC columns should be handled with care to prevent physical damage or shock. The pump should not be started at high flow rates; instead, the flow rate should be gradually increased over several minutes. A pump pressure limit should be set to protect the column from over pressuring, as sudden pressure changes can lead to voids, negatively affecting the column’s performance.<h4>HPLC Column Conditioning and Equilibration</h4>Conditioning is a critical step for preparing a new or stored HPLC column by replacing the storage solvent with the desired mobile phase. Care must be taken to avoid introducing immiscible solvent mixtures into the column. Universally miscible solvents such as THF (tetrahydrofuran) or IPA (isopropyl alcohol) can be useful for this process when moving from normal phase to reversed phase solvent systems. Care must also be taken to ensure that solvents that may be damaging to a specific stationary phase are avoided.For example, if a reversed-phase column experiences phase collapse due to 100% aqueous mobile phases, it should be reactivated. This process involves running 100% acetonitrile at a high flow rate and a temperature as high as 60°C. It is essential to ensure no solid buffers precipitate from residual solvents. Depending on the column condition, between 50 and 100 column volumes are needed for complete reactivation and equilibration, restoring the column’s efficiency for future use.<h4>Optimizing Operating Conditions</h4>Optimizing operating conditions is paramount to enhancing HPLC column efficiency and prolonging their operational lifespan. A fundamental aspect of this is strict adherence to the manufacturer’s recommended temperature, pH and pressure parameters.Deviating from these limits, particularly by operating at elevated temperatures, can significantly hasten the degradation of the stationary phase and hardware, thereby compromising overall performance. Elevated temperatures can also narrow the pH operating range, exacerbating the risk of column degradation through phenomena such as peak broadening or diminished efficiency.Effective pressure management is equally crucial. Sudden pressure surges or mechanical shocks can result in bed voiding, leading to poor chromatographic performance, such as split peaks and reduced separation efficiency. Gradual ramping of flow and pressure, implemented each time the column is initiated, mitigates these risks. Many modern HPLC systems are equipped with automated flow-pressure ramping capabilities, ensuring smoother transitions and reducing the potential for column damage.In addition, vigilant monitoring of the mobile phase's pH is vital to the maintenance of HPLC column integrity. Deviations from the optimal pH range can cause significant harm to the stationary phase. For instance, leads to ligand hydrolysis which leads to a loss of stationary phase functionality and diminished column performance over time. High pH can lead to silica degradation. This weakens the silica structure, causing particle dissolution, void formation, and loss of column efficiency. Maintaining the pH within optimal boundaries is essential for preserving the column’s structural integrity and ensuring consistent chromatographic performance.Furthermore, incorporating inline filters and guard columns into the system serves as a proactive measure to prevent particulates and harsh sample matrices from damaging the analytical column. These preventive tools significantly enhance operational conditions and safeguard the column from contamination, ultimately contributing to extended HPLC column lifetime and reliable performance.<h4>Regular Column Maintenance</h4>Effective routine maintenance is paramount to extending the HPLC column lifetime and ensuring the consistent performance of HPLC columns. A critical aspect of this maintenance is the thorough washing of the column after each use to eliminate residual sample components and mobile phase contaminants.The cleaning process generally involves performing an isocratic or gradient wash using a solvent system similar to the one previously used on the column but substituting the buffer with HPLC-grade water. This helps effectively remove any residual buffer components from the column. This meticulous cleaning process is vital to preventing the accumulation of impurities that could compromise the stationary phase and lead to decreased efficiency over time.Post-cleaning, it is imperative to end-cap the column before storage to prevent the stationary phase from drying out, a condition that can negatively impact the column’s future performance. Proper capping or sealing ensures that the column remains in optimal condition, safeguarding its structural integrity and readiness for subsequent analyses.Additionally, utilizing an older HPLC system as a dedicated wash station can further streamline maintenance practices, freeing up live systems for active use. Consistently adhering to a rigorous cleaning and storage regimen not only enhances the longevity of HPLC columns but also guarantees the delivery of precise and reliable analytical results.For severe contamination or pressure buildup, backflushing may be necessary to dislodge tightly bound contaminants. However, backflushing should only be performed when absolutely necessary, as it can stress the column packing material. It is essential to consult the manufacturer’s instructions before attempting this method.

How to Extend the Lifetime of HPLC Columns?

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Phenomenex is a global technology leader committed to developing novel analytical chemistry solutions that solve the separation and purification challenges of researchers in industrial, government and academic laboratories.

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Based in Berlin, KNAUER is a medium-sized, owner-managed company that has been serving the sciences since 1962. We develop and manufacture scientific instruments of superior quality for liquid chromatography, including: Analytical HPLC/UHPLC, Preparative HPLC, Fast protein liquid chromatography (FPLC), Multi-column chromatography/Simulated moving bed (SMB) chromatography. High pressure dosing, in-line detection systems, and osmometry are additional business areas.

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In the May meeting, we would like to share our insights and experience in dissolution software and compliance. Nowadays, one usually doesn’t go without the other, and there are many solutions to cover the needs of your company and your workflow in these areas.
We want to look at the historical development of the current data integrity and compliance requirements and what information is available from the authorities (e.g., FDA) on the topic. This overview should help you with your compliance projects and your preparation for the next audit.
<blockquote>
Presenter: Karen Krauel-Göllner, PhD (Product Manager Dissolution, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Karen Krauel-Göllner is a registered pharmacist and holds a PhD in Pharmacy from the University of Otago, New Zealand. Karen has worked in various roles in the field of pharmaceutical development. For the last 10 years she has been working with Agilent Technologies and currently holds a position as product manager for dissolution systems.
</blockquote>
<blockquote>
Presenter: Ken Boda (Dissolution Product Specialist, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Ken joined Varian (now Agilent) in 2005 as an applications engineer and is now a dissolution product specialist. Prior to working at Agilent, he worked in pharma specializing in dissolution testing and method development. As a dissolution product specialist, Ken works with customers in determining the best systems for their needs and optimizing their workflows. He has also helped educate customers on dissolution science through webinars, the Dissolution Discussion Group, LinkedIn, and other channels.
</blockquote>
<blockquote>
Presenter: Bryan Crist (President, DissoAssist Consulting, Wilmington, NC, USA)
</blockquote>
<blockquote>
Bryan has been the president of DissoAssist consulting based in Wilmington, NC, USA since 2021. He provides consulting, coaching, and training services for dissolution and drug release in the pharmaceutical industry. Bryan is also an active member on various USP Expert Committees.
</blockquote>
<blockquote>
Previously, Bryan was a scientific affairs manager with Agilent Technologies located in Cary, North Carolina, USA. From 1997 to 2021, he focused on providing method and technical application support for dissolution and drug release testing in the pharmaceutical industry as well as working with VanKel, Varian, and eventually Agilent. Prior to 1997, Bryan supervised and managed pharmaceutical laboratories and performed analytical testing with Bristol-Myers Squibb, Merck, AAI, and Abbott Laboratories until he joined the dissolution equipment manufacturer VanKel.
</blockquote>
<blockquote>
Presenter: Vivian Gray (Founder VA Gray Consulting; Managing Director of Dissolution Technologies)
</blockquote>
<blockquote>
Vivian has spent the last 40+ years involved in all aspects of dissolution testing and evaluating new dissolution technology. At the United States Pharmacopeia, she enjoyed a long career serving first as a bench chemist, supervisor, and lastly as a liaison to various expert USP committees. In 1997, Vivian joined the DuPont-Merck Pharmaceuticals Company Analytical Research and Development Section as the head of the Dissolution Group. In 2002, she formed her own consulting business, V. A. Gray Consulting, Inc., in dissolution testing and related areas. In June 2003, she became managing director of Dissolution Technologies, a peer-reviewed journal dealing specifically with dissolution testing issues.
</blockquote>

Agilent: Key Considerations for Dissolution Software and Compliance

Key Considerations for Dissolution Software and Compliance

This overview should help you with your compliance projects and your preparation for the next audit.

Now we are ready to scale up with Whisper™.
Our new and improved Whisper Flow Technology is a user-friendly set of methods that allows you to unlock the full potential of high-sensitivity applications.
Join this webinar to learn how to get started. 
When registering for our webinar you will automatically join our monthly news list. You can unsubscribe at any time.

EVOSEP: Improved Whisper™ methods drive scalable workflows

Improved Whisper™ methods drive scalable workflows

Our new and improved Whisper Flow Technology is a user-friendly set of methods that allows you to unlock the full potential of high-sensitivity applications. 

Since 2018 when the presence of Nitrosamines was first reported in several ARB (angiotensin II receptor blocker) drugs, there has been increasing regulatory focus to mitigate the presence of these potential human carcinogens in drug substances and drug products.
<h5>Who Should Attend:</h5>
<ul>
<li>Anyone with an interest in, or challenged by, the analysis N-Nitrosamines and Nitrosamine Drug Substance Related Impurities (NDSRI) in API and/or Drug Products
</li>
<li>Analysts and Scientists working in the Pharmaceutical and Generic Pharmaceutical industries.
</li>
</ul>
<h5>Key Learning Points:</h5>
<ul>
<li>Review the latest regulatory updates (FDA and EMA)
</li>
<li>Learn about published LC-MS/MS applications which address the N-Nitrosamines and NDSRI analysis challenges in drug products
</li>
<li>Find solutions to sample preparation challenges for N-Nitrosamines analysis in drug products
</li>
<li>Obtain examples of specific Phenomenex applications for nitrosamines (10 mutagenic nitrosamine impurities in Acyclovir) and NDSRIs (N-nitroso propranolol in a propranolol drug substance and product)
</li>
</ul>
<blockquote>
Presenter: Phil Koerner (Market Development Manager, Pharmaceuticals)
</blockquote>

Phenomenex: Nitrosamines in Drug Products: Where Are We Now?

Nitrosamines in Drug Products: Where Are We Now?

Learn about published LC-MS/MS applications which address the N-Nitrosamines and NDSRI analysis challenges in drug products

Experienced biopharma scientists who specialized in peptide and protein characterization face increasing pressure to achieve in-depth characterization with streamlined workflows, ensuring precise data and timely results.
Learn how you can meet these challenges with the latest enhancements for peptide &amp; protein characterization with the Agilent 6545XT AdvanceBio LC/Q-TOF. The 6545XT has been designed for biopharma workflows.
Excellent intact protein analyses and spectra quality are achieved by ultrahigh vacuum as well as a designated large molecule autotune. Both substantially benefit native analyses of multispecifics and antibody–drug conjugates.
With a mass range of up to 3,000 m/z, they future proof new developments. Flash characterization using microdroplet reactions facilitates fast subunit analyses, either by reduction or IdeS digest within the standard dual Agilent Jet Stream source. Iterative MS/MS benefits both exhaustive peptide mapping as well as host cell protein analyses. 
Dedicated workflows in Agilent MassHunter BioConfirm software allow for streamlined data analysis, also including the analysis of oligo workflows as sequence confirmation and impurity analyses.
<h5>Key learning objectives:</h5>
<ul>
<li>Learn how to attain more comprehensive and timely results with new cutting-edge workflows for peptide and protein characterization.
</li>
<li>Learn about new Agilent software for interpreting rich MS/MS spectra with confidence.
</li>
</ul>
<h5>Who should attend:</h5>
<ul>
<li>Lab analysts in discovery biopharma</li>
</ul>
<blockquote>
Presenter: Christian Klein, PhD (Product Manager LC/Q-TOF, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
With an education in chemistry, Chris Klein received his PhD in 2005 at the Max Planck Institute for Biochemistry in Martinsried, Germany, working on membrane proteins and mass spectrometry. After a post doctorate and three years as demo chemist and product specialist with Bruker Daltonics, Chris joined the Agilent LC/Q-TOF R&amp;D team in 2010. Since 2018, he has been the LC/Q-TOF and IM-QTOF product manager. 
</blockquote>
<blockquote>
Presenter: Joseph Meeuwsen (Product Manager ExD, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Dr. Joseph Meeuwsen is the product manager for ExD technologies at Agilent. He completed his PhD in molecular and cellular biology at Oregon State University (OSU) in 2020. During his PhD, he started working at e-MSion, Inc., a company started in 2015 by OSU researchers to develop the ExD cell platform into a commercial product. His initial role as an applications scientist expanded to include diverse responsibilities in the areas of support, sales, marketing, and R&amp;D. He became product manager for the ExD cell in 2021 and continued this role when Agilent acquired e-MSion in 2023.
</blockquote>

Agilent Technoloigies: Upgrade your Protein Characterization Game with Agilent ExD

Upgrade your Protein Characterization Game with Agilent ExD

Learn how you can meet challenges with the latest enhancements for peptide & protein characterization with the Agilent 6545XT AdvanceBio LC/Q-TOF. 

As the field of gene therapy progresses, processes to produce this life-changing therapy may introduce impurities that can significantly impact its performance and quality.
Join Dr. Ben Draper, analytical lead at MegaDalton Solutions and Dr. Dr. Sophia Kenrick, head of analytical services at Waters|Wyatt Technology, for a deep dive into tackling critical impurities, particularly empty AAV capsids. Discover how size exclusion chromatography with UV and multiangle light scattering (SEC-MALS) can be optimized to ensure accurate measurements.
They will also explore the full-to-empty ratio as well as the quantification of partials using charge detection mass spectrometry (CDMS). Find out how SEC-MALS and CDMS can revolutionize analytical development and quality control testing. Plus, learn how the standard AAV Method Implementation and Training Service, as well as SOP Guidance Manual, can facilitate the adoption of advanced technology as a platform method for AAV development and production.
<h5>Key learning objectives</h5>
<ul>
<li>Understand the application of multi-angle light scattering coupled to size exclusion chromatography (SEC-MALS) for determining:
<ul>
<li>Molar mass</li>
<li>Aggregation</li>
<li>Empty/Full analysis</li>
<li>Titer of the capsid and genome</li>
</ul>
</li>
<li>Gain insights into the use of charge detection mass spectrometry for analyzing partial capsids
</li>
<li>Explore the advantages of employing orthogonal techniques for ccomprehensive AAV characterization
</li>
</ul>
<blockquote>
Presenter: Dr. Ben Draper (Analytical Lead, MegaDalton Solutions)
</blockquote>
<blockquote>
Dr. Ben Draper holds a PhD from Indiana University. During his doctoral research, he optimized charge detection mass spectrometry (CDMS) data handling, enhancing detection sensitivity. As the Analytical Lead at MegaDalton, he collaborates extensively with pharmaceutical companies, specializing in characterizing large, complex therapies like AAVs, adenovirus, and virus-like particles. He continues to address the needs of scientists for accurate reporting of absolute masses of products for confident identification and safety of their therapeutics products.
</blockquote>
<blockquote>
Presenter: Dr. Sophia Kenrick (Director of Analytical Sciences, Waters | Wyatt Technology)
</blockquote>
<blockquote>
Dr. Sophia Kenrick has a PhD in Chemical Engineering from the University of California. As head of the Analytical Sciences team at Waters|Wyatt Technology, she supports emerging light scattering instrumentation applications. She also develops new solutions to address customer applications, including the development of platform SEC/FFF-MALS methods for multi-attribute quantitation (MAQ) of gene therapy products, biopharmaceuticals, and other macromolecules.
</blockquote>
<blockquote>
Presenter: Sofia Hamadache (SelectScience)
</blockquote>
<blockquote>
Sofia studied Chemistry at University College London, UK. As a member of the Editorial team, she now plays an integral role in shaping the content on SelectScience.
</blockquote>

SelectScience: An Orthogonal Approach for Comprehensive AAV Characterization

An Orthogonal Approach for Comprehensive AAV Characterization

Discover how size exclusion chromatography with UV and multiangle light scattering (SEC-MALS) can be optimized to ensure accurate measurements.

Approach for Comprehensive AAV Characterization

Key Learning Points:
<ul>
<li>Tips and tricks on method development and optimization</li>
<li>Benefits to use small particle high resolutive Silica material for Flash</li>
<li>How to properly conduct analytical development for flash using HPLC</li>
</ul>
Overview
<ul>
<li>Discovery of Process Challenges</li>
<li>Flash Chromatography Method and Trends</li>
<li>Advancements in Flash Chromatography</li>
<li>Boosting Productivity</li>
</ul>
<blockquote>
Presenter: Olivier Drouet (Business development Manager – Purification Technologies, Europe, Phenomenex)
</blockquote>

Phenomenex: Impacting productivity with Modern Flash Chromatography

Impacting productivity with Modern Flash Chromatography

Join the webinar to learn about methods, trends, and advancements in flash chromatography.

This virtual round table aims to facilitate insightful conversations among pharmaceutical industry experts, including Echo® MS+ system customers and representatives from the SCIEX Echo® MS Center of Excellence. Our moderator, Axel Besa, will guide the discussion through various aspects of the Echo® MS+ system, its applications including high throughput screening and intact protein analysis, and the impact it holds for laboratories and organizations.
Why attend?
<ul>
<li>Gain valuable insights into the capabilities of Echo® MS+ system and its potential impact on your lab or organization</li>
<li>Network with industry peers and experts to foster collaborations and stay updated on the latest trends in mass spectrometry</li>
</ul>
<blockquote>
Presenter: Markus Stoeckli, Ph.D., (Novartis)
</blockquote>
<blockquote>
Markus, a leading figure in mass spectrometry, obtained his doctorate in 1996 from the University of Berne. From Vanderbilt University to his current role at the Novartis Institute for BioMedical Research, he&#39;s contributed significantly, pioneering MALDI q-TOF instrumentation, high-mass ion trap technology, and label-free molecular imaging. Beyond technical innovation, his skills in software development and user interaction design are notable. Markus&#39;s passionate advocacy for impactful technologies in biomedical research is evident through his founding membership in the mass spectrometric imaging society and active participation in grant reviews and academic committees. Always eager to explore new mass spec concepts, Markus remains a dynamic force in advancing the field.
</blockquote>
<blockquote>
Presenter: Reza Nemati, Ph.D., (Biogen)
</blockquote>
<blockquote>
Reza serves as a Principal Scientist at Biogen and a team lead within the Bioassay and High Throughput Screens (BHTS) group since January 2019. Over the past five years, he has played a pivotal role in establishing and expanding mass spectrometry-based assay and HTS capabilities to support Biogen&#39;s early-stage preclinical portfolio projects.
</blockquote>
<blockquote>
Before joining Biogen, Dr. Nemati worked at the RNA Institute at the University at Albany, NY. There, he primarily utilized mass spectrometry to study RNA structure and post-transcriptional modifications. He obtained his Ph.D. in biological sciences from the University of Connecticut (UConn) under the supervision of Dr. Xudong Yao.
</blockquote>
<blockquote>
Presenter: Jacob McCabe, Ph.D., (SCIEX)
</blockquote>
<blockquote>
Jacob McCabe, Ph.D. is a Senior Scientist at SCIEX at the Echo® MS Center of Excellence in Framingham, MA.
</blockquote>
<blockquote>
The lab is a dynamic and interactive scientific showroom containing new and cutting-edge innovations in mass spectrometry. Jacob and colleagues collaborate with researchers from around the globe to develop new approaches to high throughput quantitative mass spectrometry across a range of molecule types and analytical challenges. He holds a Bachelor of Science in chemistry from Baylor University, a Master of Science from Texas A&amp;M University–Commerce, and a Doctor of Philosophy in Analytical Chemistry from Texas A&amp;M University studying under Professor David H. Russell.
</blockquote>

SCIEX: Exploring the Echo® MS+ system for pharmaceutical discovery assays

Exploring the Echo® MS+ system for pharmaceutical discovery assays

Join us for an engaging discussion on the future of high-throughput mass spectrometry.

Echo® MS+ system for pharmaceutical discovery assays

Effective sample preparation is crucial for accurate PFAS analysis, especially as PFAS testing becomes more widespread and regulated, particularly in complex matrices like food, non-potable water samples, soils, and tissue. This webinar will focus on the importance of method robustness and recent advances and the importance of solid-phase extraction to ensure acceptable recoveries and reproducibility for PFAS analysis.
This webinar will highlight three applications for PFAS determination from food and environmental matrices including:
<ul>
<li>Analysis of 28 EU regulated and recommended PFAS from vegetable, fruit, and baby food samples</li>
<li>An automated approach using the Andrew+ robot for analysis of PFAS from milk matrices</li>
<li>Analysis of PFAS in accordance with EPA 1633 for aqueous, soil, and tissue samples</li>
</ul>
Additionally, we will demonstrate the use of new Oasis WAX/GCB and GCB/WAX for PFAS Analysis cartridges for EPA Method 1633 and food applications and the cartridges’ benefits. Join us to learn more about ways to enhance your PFAS analysis.
Key Learnings:
<ul>
<li>Understand importance of robust sample preparation in PFAS analysis </li>
<li>Examine specific food and environmental applications and methods for PFAS determinate from a wide variety of matrices</li>
<li>Learn about recent advances in sample preparation products and automation to enhance efficiency, cleanliness, and accuracy for PFAS workflows</li>
</ul>

Waters Corporation: PFAS Sample Preparation Approaches for Complex Food and Environmental Matrices AM EU

PFAS Sample Preparation Approaches for Complex Food and Environmental Matrices

 Importance of method robustness and the solid-phase extraction to ensure acceptable recoveries and reproducibility for PFAS analysis.

PFAS Sample Preparation for Food and Environmental Matrices

Harvest time has come for modern biotechnology and biotherapeutics, bringing a cornucopia of products – CRISPR Cas nucleases, therapeutic viruses, cells and engineered tissue constructs.
Along with superior therapeutic efficacy, these products feature unprecedented complexity of biomolecular features and range of scales that define their identity, efficacy and safety.
In this webinar, our expert speaker Dr. Stefano Menegatti from NC State University, will discuss his team’s approach in leveraging affinity technology to introduce new tools for purifying and characterizing biotherapeutics to match the growing demands of clinics and biotech industries worldwide. 
Attend this webinar to:
<ul>
<li>Learn about affinity ligands operating in negative and positive capture mode for the continuous purification of biotherapeutics</li>
<li>Discover first of its kind RNA triggers for the purification of CRIPSR-CAS nucleases via affinity chromatography</li>
<li>Explore the complexity of EIS sensors for one-step quantification of total virus particle and empty capsid quantification</li>
</ul>
<blockquote>
Presenter: Stefano Menegatti, PhD (Associate Professor, Chemical and Biomolecular Engineering, NC State University)
</blockquote>

Technology Networks: Modernizing the Purification Toolbox for Multi-Specific Antibodies, CRISPR and Cell and Gene Therapies

Modernizing the Purification Toolbox for Multi-Specific Antibodies, CRISPR and Cell and Gene Therapies

Leveraging affinity technology to introduce new tools for purifying and characterizing biotherapeutics.

Purification of Antibodies, CRISPR, Cell and Gene Therapies

Drug testing can be performed in many biological matrices, such as urine, blood, saliva, sweat, hair and nail. Although urine and blood testing are the most common forms of drug testing, the use of keratinized matrices such as hair and nail is becoming extremely valuable in providing a broader picture of past drug consumption.
This is due to the incorporation of drugs consumed by the subject in the hair and nail keratin matrices, offering a much wider detection window than conventional biological matrices. In addition to the non-invasive nature of sample collection, hair and nail specimens are easy to transport and store, which minimizes the risk of sample alteration and degradation overtime. Despite its rise in popularity, drug detection in keratinized matrices remains challenging due to the low concentration of drugs embedded in the keratin matrix. As a result, hair and nail analysis requires sensitive instrumentation and extensive validation. 
This webinar will focus on the method development and validation of LC-MS/MS-based methods required to perform comprehensive and sensitive drug analysis in keratinized matrices. Case examples of the use of these methods will be demonstrated, highlighting the need for high-sensitivity mass spectrometry instrumentation for low-level detection of drugs and metabolites in hair and nail samples. The result presented will highlight the benefits of hair and nail analyses in forensic applications, enabling researchers to obtain significant retrospective information about past exposure and long-term use of drugs in the consumer’s population. 
Key learnings in this webinar will include:
<ul>
<li>Attendees will learn about the advantages of hair and nail testing to determine long-term drug exposure </li>
<li>Attendees will get an understanding of the importance of method development and validation of LC-MS/MS-based methods to perform comprehensive drug analysis in keratinized matrices</li>
<li>Attendees will discover the benefits of sensitive mass spectrometry instrumentation for the detection of low-level drugs and metabolites in keratinized matrices</li>
</ul>

Wiley: Hair and Nail Analysis in Forensic Applications

Hair and Nail Analysis in Forensic Applications

Development and validation of LC-MS/MS methods for drug analysis in keratinized matrices.