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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Everything from the world of analytical chemistry in one place. We connect people in solving their problems. At Labrulez you will find all the necessary information easily, quickly and clearly. Stop searching and start finding.

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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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Waters Corporation

A critical step in the development process for an antibody drug conjugate (ADC) is establishing scientifically sound analytical methods that measure key product quality attributes to support pre-clinical activities and downstream clinical release and stability testing. By leveraging key technologies and platform analytical methods, drug developers can expedite an early-phase biologics’ path to IND by removing analytical method development from the critical path.
Join us on an exploration of the analytical characterization required to confidently assess the ID, safety and efficacy of an antibody drug conjugate (ADC). We will start with a practitioners view on the requisite analytics and then shift to several case studies where multiple techniques, from mass spectrometry to light scattering, were used to interrogate these complex protein conjugates.
This webinar promises a comprehensive look at the analytical processes and technologies needed to successfully advance ADC development.
<h5>In this webinar you’ll learn:</h5>
<ul>
<li>Thermal stability and conformational changes associated with the drug-antibody-ratio (DAR)</li>
<li>How light scattering can be used to study the aggregation of ADCs</li>
<li>The precision and detail that mass spectrometry provides for ADC characterization</li>
<li>Justification of application of platform analytical strategies to IgGs and lessons learned</li>
</ul>
<h5>Who should attend:</h5>
<ul>
<li>Biophysical scientists in government and academia</li>
<li>Biopharm method development</li>
<li>Biopharm process development</li>
<li>Biopharm CMC</li>
</ul>
<blockquote>
Presenter: Colette Quinn, PhD (Director of Marketing and Strategy, Waters|Wyatt Technology)
</blockquote>
<blockquote>
Colette has worked for Waters Corporation for 13 years, in a number of roles from Applications Scientist and Product Manager before subsequently joining the Wyatt Technology portfolio in 2023.
</blockquote>
<blockquote>
Prior to joining Waters, she was awarded her Doctorate in Chemistry by Dartmouth College, where she focused on biophysical techniques applied to essential and heavy metal metabolism. Colette is currently working on exciting transformational strategy programs related to more broad adoption of biophysical techniques.
</blockquote>
<blockquote>
Presenter: Eric Miller, PhD (Sr. Scientific Leader for Analytical Development, Abzena)
</blockquote>
<blockquote>
Dr. Miller has been in the biopharmaceutical industry since 1996, where he received an initial exposure to antibodies and associated technologies while developing lateral flow diagnostics for the Quidel corporation. Eric has been with Abzena for over 4 years.
</blockquote>
<blockquote>
In his initial role with the organization Eric served as the Senior Director of the San Diego AMDQC department and later moved to a global position within Abzena’s Scientific Leadership team wherein he serves as analytical subject matter expert.
</blockquote>
<blockquote>
Prior to joining Abzena, he spent an extensive stint in academia, conducting his PhD studies at Scripps Institution of Oceanography under Professor William Fenical and went on to do postdoctoral research at the California Institute of Technology under Professor Raymond Deshaies and at the Scripps Research Institute under Professor Peter G. Schultz.
</blockquote>
<blockquote>
Since completing his academic training Eric has provided analytical support for multiple phases of drug development in arenas ranging from early R&amp;D to Commercial.
</blockquote>
<blockquote>
Moderator: Michelle Taylor (Editor-in-Chief, Laboratory Equipment, Labcompare &amp; Forensic®)
</blockquote>

Waters Corporation: Leveraging Advanced Analytical Technologies to Expedite the Development of Antibody Drug Conjugates

Leveraging Advanced Analytical Technologies to Expedite the Development of Antibody Drug Conjugates

Analytical characterization required to confidently assess the ID, safety and efficacy of an antibody drug conjugate (ADC).

Analytical Technologies in ADC Development

<h4>Overview</h4>
To remain competitive against other technologies, mass spectrometry (MS) needs to rise to the challenge of unprecedented throughput with very deep analyses of very complex samples. With analysis time reduced to several minutes by fast liquid separations, confident identification and quantitation over many orders of dynamic range still requires a generational leap in the sequencing performance of MS. The Thermo Scientific™ Astral™ analyzer is a novel class of high-resolution accurate-mass analyzer that compliments the Thermo Scientific™ Orbitrap™ analyzer to provide high speed and sensitivity measurements.
This webinar will explore the underlying technology of the Thermo Scientific™ Orbitrap™ Astral™ mass spectrometer and its’ application to biomedical research. Rethink what is possible with a mass spectrometer including the analysis of 300 proteomics samples per day, measuring 5,000 proteins from a true single-cell, and collecting fragmentation data on over 90% of compounds in metabolomics experiments.
Key Learning Objectives:
<ul>
<li>Learn about the novel technology of the Orbitrap Astral mass spectrometer </li>
<li>Understand the benefits of the Orbitrap Astral mass spectrometer </li>
<li>How to apply the Orbitrap Astral mass spectrometer to solve biological questions</li>
</ul>
Who Should Attend:
<ul>
<li>Academic Researchers </li>
<li>R&amp;D Scientists </li>
<li>Lab Technicians</li>
<li>Principal Investigators</li>
<li>Lab Managers</li>
</ul>
<blockquote>
Presenter: Dr. Alexander Makarov (Director, Global Research LSMS, Thermo Fisher Scientific)
</blockquote>
<blockquote>
Presenter: Dr. Hamish Stewart (Staff Scientist, Analytical Instruments Group, Thermo Fisher Scientific)
</blockquote>
<blockquote>
Presenter: Ann Thayer (Contributing Editor, C&amp;EN Media Group)
</blockquote>

C&EN: Pushing the Frontiers of Mass Spectrometry

Pushing the Frontiers of Mass Spectrometry

This webinar will explore the underlying technology of the Thermo Scientific™ Orbitrap™ Astral™ mass spectrometer and its’ application to biomedical research.

Join our webinar and learn more of how the Evosep technology, its workflows and applications in the Proteomics Core Facility.

Evosep Biosystems: Evosep One in the Proteomics Core Facility

Evosep One in the Proteomics Core Facility

Join our webinar and learn more of how the Evosep technology, its workflows and applications in the Proteomics Core Facility.

Newborn screening (NBS) has revolutionized public health by enabling early diagnosis and intervention for infants with inborn errors of metabolism (IEMs), leading to improved prognosis and quality of life.
Tandem mass spectrometry (MS/MS) has emerged as a cost-effective solution for the simultaneous detection of numerous amino acids and acylcarnitine profiles within a single test, all while offering outstanding analytical accuracy and precision. As a result, MS/MS has gained widespread application in the screening of IEMs, including amino acid disorders, organic acidemia, and fatty acid oxidation defects.
In this session on Shimadzu Digital Classrooms, we are honoured to invite Dr. Dahlia from UP-NIH, who will enlighten us on the development of newborn screening methods, specifically in the Philippines. Join us as we delve into the potential of MS/MS technology in advancing NBS and explore Shimadzu&#39;s innovative Analytical and Medical solutions. Discover how these advancements can contribute to better health outcomes for infants and their families.
<h5>Learning Objectives:</h5>
<ul>
<li>Apply the relevant learnings from the case study in the Philippines to newborn screening in the ASEAN region</li>
<li>The current outlook and challenges in newborn screening</li>
<li>Discover Shimadzu&#39;s total solutions for newborn screening and Shimadzu&#39;s development for NBS in the ASEAN region</li>
</ul>
<blockquote>
Presenter: Naatasha Isahak, PhD (Market Specialist - Clinical and Forensics, Shimadzu - Asia Pacific Pte Ltd)
</blockquote>
<blockquote>
Naatasha Isahak is a Product Specialist for MALDI and Life Sciences Products from Shimadzu Asia Pacific Pte Ltd. She has received her PhD from the University of Sydney (Chemistry) working on surface initiated polymerisation on silica nanoparticles using RAFT polymerisation and bioorthogonal conjugation of peptides using Native Chemical Ligation. She then spent 5 years working on developing platforms for stem cells and organoids characterization that included working with microfluidic devices and helical polymers. Naatasha joined Shimadzu in 2022 to expand her experiences to MALDI characterization on materials and biological samples.
</blockquote>
<blockquote>
Presenter: Dahlia C. Apodaca, PhD, RCh (Head, Biochemical Genetics Laboratory, National Institutes of Health, University of the Philippines-Manila)
</blockquote>
<blockquote>
Dr. Dahlia del Castillo Apodaca is a highly accomplished scientist and serves as the Head of the Biochemical Genetics Laboratory at the Institute of Human Genetics, National Institutes of Health, University of the Philippines-Manila. She has made significant contributions to the scientific community, including her role as a Visiting Scientist at prestigious institutions such as the Department of Clinical Chemistry, Inselspital, University Hospital Bern in Switzerland in 2022, and the Biochemistry Department at the National Children&#39;s Hospital in Hanoi, Vietnam in 2024. With extensive research experience, she has also successfully authored scientific papers published in renowned, ISI-indexed publications. Additionally, Dr. Apodaca has also written several Senior High School Textbooks covering subjects such as General Chemistry, Practical Research, Research Capstone, and Inquiries, Investigation, and Immersion.
</blockquote>

Shimadzu: Advancing Newborn Screening with MS Technology

Advancing Newborn Screening with MS Technology

Join us as we delve into the potential of MS/MS technology in advancing newborn screening and explore Shimadzu's innovative Analytical and Medical solutions.

Chemists have been diligent in their pursuit to uncover best practices for achieving more reliable scale up from analysis to preparative liquid chromatography (or PREP LC). PREP LC is the primary technique used to isolate target compound(s) from complex reaction mixtures in support of molecular synthesis. Predictably scaling an LC separation to produce highly pure molecular targets is not trivial and the risk of sample loss is real.
Because chemists spend days and weeks creating their precious new molecular targets, leaving success to chance in scaling an LC separation is ill-advised. Method conditions need to be maintained and care taken to achieve direct scale-up in prep separations. By following just 5 simple rules for LC scale up, the chemist can likely avoid surprising outcomes such as inadequate compound purity (requiring rework) and target recovery. A review of scale-up rules as well as practical guidance for first-time purification success will be the focus of this webinar.
**Key Learning Objectives: **
<ul>
<li>Learn to scale your analytical – prep methods predictably.</li>
<li>Gain knowledge from practical guidance shared for first-time purification success when scaling your LC separation.</li>
<li>Discover how following the rules of scaling PREP LC simplifies the process</li>
<li>Learn how to better control LC scale-up outcomes and boost both target purity and recovery.</li>
</ul>
<blockquote>
Presenter: Kathy Lawrence (Sr. Product Marketing Manager, Waters Corporation)
</blockquote>
<blockquote>
Kathy Lawrence is the Sr. Product Marketing Manager for prep column technologies at Waters Corporation. Early in her career, she was a discovery R&amp;D chemist and a CRO lab manager gaining valuable experience isolating natural products and synthesizing small molecule targets. Later, as Waters North America Purification Specialist, she travelled the continent supporting the success of others purifying targets at various scale. Kathy has held advanced leadership roles in marketing and business development in support of the commercialization of systems, services, and consumables. She holds a Masters degrees in both chemistry and business, is an author of some scientific publication, and is a patented product inventor.
</blockquote>

Waters Corporation: 5 Rules for Successfully Developing and Scaling Up Your LC Purification

5 Rules for Successfully Developing and Scaling Up Your LC Purification

A review of scale-up rules as well as practical guidance for first-time purification success will be the focus of this webinar.

5 Rules for Developing and Scaling Up LC Purification

Ion chromatography (IC) has become the preferred method for ion analysis, replacing many time-consuming and laborious wet-chemical techniques such as gravimetry, nephelometry, turbidimetry, etc. IC is a multi-parameter method and can be used for the determination of a wide array of anions, cations, transition metals, amines, carbohydrates, and organic acids.
In fact, the United States Pharmacopeia has modernized a substantial number of monographs to stipulate IC methods for numerous pharmaceutical assays of APIs as well as analysis of impurities and excipients. In a joint webinar on March 6, Dr. Raman, Director, Analys Lab, India, and Niranjan Kothandaraman, Product Manager Ion Chromatography at Metrohm India, will introduce you to applied ion chromatography. They present a number of applications to determine typical anions and cations, among them nitrite and nitrate, the precursors of nitrosamines. 
After their presentation, they will address any questions you may have in a Q&amp;A session at the end of the webinar. Register for this event now and get to know the potential of IC for your daily routine analytics!
Key learnings of this webinar:
<ul>
<li>Learning what ion chromatography is and how it can be used for identification and quantification of assay, impurities, and excipients</li>
<li>Understanding validated IC methods for pharmaceutical applications</li>
<li>Getting to know an IC method to determine nitrite and nitrate, the precursors of nitrosamines</li>
</ul>
Who should attend?
R&amp;D managers, QC managers, lab technicians and chemists responsible for R&amp;D and QC in research, development, and manufacturing of pharmaceuticals.
<blockquote>
Presenter: Dr. Raman (Director Laboratory, Analys PLtd., India)
</blockquote>
<blockquote>
Dr. Raman is the Director of Analys laboratory private limited, Hyderabad. Dr. Raman has earned his doctorate in analytical chemistry from Acharya Nagarjuna University, Guntur, India. He has more than three decades of experience in analytical R&amp;D in pharmaceutical industry. Dr. Raman has been a member of the board of studies in educational institutions. He has more than 25 publications to his credit on the development and validation of analytical methods in HPLC, UPLC, IC and GC-MS techniques.
</blockquote>
<blockquote>
Presenter: N. Kothandaraman (PM Ion Chromatography, Metrohm India PLtd.)
</blockquote>
<blockquote>
Mr. Niranjan Kothandaraman holds a M.Sc. degree in Applied Chemistry from Regional Engineering College, Trichy, India. Joined as an Application Chemist at Metrohm India and has good knowledge and working experience with all the analytical instruments from Metrohm AG. Having got an opportunity in marketing, currently he is working as a Product Manager at Metrohm India for Ion Chromatography, Voltammetry and Elga Water Purification Systems and is responsible for pan India business. He has been with Metrohm India since last 24 years.
</blockquote>

Metrohm: From APIs to Impurities and Excipients – Ion Chromatography for Pharmaceutical Analysis

From APIs to Impurities and Excipients – Ion Chromatography for Pharmaceutical Analysis

In a joint webinar we will introduce you to applied ion chromatography.

Ion Chromatography for Pharmaceutical Analysis

In today&#39;s fast-evolving laboratory landscape, lab safety is paramount. Insights from industry professionals emphasize the critical role of environmental, health, and safety (EHS) in shaping the priorities of today&#39;s labs. Labs today are facing challenges that were unimaginable a few years ago. To stay productive, they need every advantage they can get. That&#39;s why maintaining high EHS standards is a smart business decision. A Safe, Healthy Lab Is a Productive Lab.
In this webinar, we will delve into the essential elements of lab safety and explore the key priorities of today&#39;s labs. You will gain insights into the challenges labs encounter and discover proactive solutions to create the safest lab environment. Your lab&#39;s safety is our priority.
<h5>Webinar Focus Areas:</h5>
<ul>
<li>Importance of Safety</li>
<li>Chemical Safety</li>
<li>Ergonomics</li>
<li>Electrical Hazards</li>
<li>Environmental Stewardship</li>
</ul>
<h5>Who Should Attend:</h5>
<ul>
<li>Lab Managers</li>
<li>EHS Managers</li>
<li>Scientists</li>
<li>Anyone involved in lab safety decision-making</li>
</ul>
<blockquote>
Presenter: Mr. Sunil B Lakhmapure (Technical Support Specialist, Agilent Technologies)
</blockquote>
<blockquote>
Sunil holds 19 year plus experience in the analytical field with major exposure to LC/GC with Single Quad, Triple Quad and high resolution (QToF) mass spectroscopy. Started career in Pharma R&amp;D as a scientist with hands on experience on high end instruments like LC/MS, XRD &amp; NMR. Developed &amp; published application notes using Chromatographic techniques on real world samples/issues at various levels.
</blockquote>

Agilent: Safe Lab: Lab Safety, Productivity, and Excellence at Your Fingertips

Safe Lab: Lab Safety, Productivity, and Excellence at Your Fingertips

In this webinar, we will delve into the essential elements of lab safety and explore the key priorities of today's labs.

Lab Safety, Productivity, and Excellence at Your Fingertips

<h4>Live Interactive Web Series</h4>
We’ll work through a topic of the week (roughly 60 minutes) and discuss any questions that come up along the way. During these sessions, we’ll talk about how to care for your SEC-MALS or FFF-MALS system, help you brush up on your ASTRA and DYNAMICS data processing, discuss measuring dn/dc values and why dn/dc is important, and see how stable RI baselines are achievable.
Working with polydisperse samples? We’ll see how to leverage ASTRA’s distribution analysis and results fitting features. Special topics on error analysis, batch MALS work, and more.
The live interactive web series are 100% live sessions, with anonymous Q&amp;A welcome during and after the discussion. Free for all to attend.
<ul>
<li>Part 1 of 6: Why we love Multi-Angle Light Scattering! How MALS works and what it measures. Modes of operation and when to use them*
<ul>
<li>MALS theory and operating principles</li>
<li>Batch MALS vs. flow mode MALS: when and why</li>
<li>What MALS can and cannot measure directly</li>
</ul>
</li>
<li>Part 2 of 6: Getting to know your MALS hardware, including ‘proper care &amp; feeding’ of the system, practical guides for optimizing data quality, and how to know when your DAWN hardware needs special attention*
<ul>
<li>Understanding the MALS hardware internal and external components</li>
<li>Diagnosing hardware issues</li>
<li>How to help your MALS operate at its best</li>
</ul>
</li>
<li>Part 3 of 6: Let it flow - Leveraging MALS with Size Exclusion Chromatography SEC / Gel Permeation Chromatography GPC. Considerations for successful SEC-MALS / GPC-MALS operation. How to process ASTRA data on and after day 1*
<ul>
<li>Practical considerations for MALS in SEC/GPC mode</li>
<li>Understanding system settings &amp; coefficients such as inter-detector band broadening and normalization</li>
<li>Squeezing the most information from your SEC-MALS data</li>
</ul>
</li>
<li>Part 4 of 6: Advanced topics in ASTRA data analysis - uncertainty calculations, MW averages, mass recovery, distribution analysis, results fitting, and data exporting*
<ul>
<li>Understanding the ways ASTRA tracks and calculates system errors</li>
<li>Leveraging peak integration to understand what’s in your sample</li>
<li>When and why to use the various MW averages: Mn, Mw, Mz, Mp, Mavg, Mv, etc.</li>
<li>Efficient and easy ways to export exactly the data and results you want, right out of ASTRA</li>
</ul>
</li>
<li>Part 5 of 6: All about dn/dc values and concentration detectors (UV and RI) for MALS*
<ul>
<li>Understanding dn/dc, what it is, and how it is used with MALS</li>
<li>Measuring / determining dn/dc for your samples</li>
<li>UV detectors and their role in MALS</li>
<li>Mass recovery in ASTRA</li>
</ul>
</li>
<li>Part 6 of 6: MALS flow cell care: diagnosing and cleaning your flow cell*
<ul>
<li>How to avoid the need to clean your MALS flow cell in the first place</li>
<li>How to diagnose a dirty MALS flow cell</li>
<li>How to take apart and clean your MALS flow cell</li>
</ul>
</li>
</ul>
*It is recommended but not required that you attend all the sessions in this series.
<blockquote>
Presenter: Dr. Andy Meyer
</blockquote>
<blockquote>
Dr. Andy Meyer joined Wyatt Technology in 2001, serving for several years as an Applications Scientist, then as Dean of Wyatt&#39;s &quot;Light Scattering University&quot; and as Director of Customer Service &amp; Support. After managing multiple regions in North America, Dr. Meyer is now a Senior Application Scientist for Wyatt. As a Wyatt customer, he completed his Ph.D. in Applied Science – Polymer Chemistry from the College of William and Mary in Virginia.
</blockquote>

Waters Corporation: Why we love Multi-Angle Light Scattering! How MALS works and what it measures. Modes of operation and when to use them

Why we love Multi-Angle Light Scattering! How MALS works and what it measures. Modes of operation and when to use them

Why we love Multi-Angle Light Scattering!

Meaningful biomarker studies that account for genetic, environmental and lifestyle variation, or comprise of complex signatures from multiple proteins, require large cohorts – too large for the current proteomics discovery platforms.
In this webinar, you’ll hear how Prof. Dr. Hanno Steen’s lab at Harvard Medical School has developed a novel high-throughput plasma proteomics pipeline designed for large-scale biomarker discovery studies.
Prof. Dr. Steen will highlight how the pipeline has been tested and validated on over 10,000 samples across diverse disease contexts, and outline how it could be used to better understand the impact of development, infection and vaccination on the immune system.
<h5>Attend this webinar to:</h5>
<ul>
<li>Discover how the novel pipeline uses chemical depletion to provide low-cost, high-throughput access to plasma proteomes in both model systems and humans</li>
<li>Hear how this method has identified unique immunophenotypes and prognostic biomarkers in diseases including COVID-19</li>
<li>Explore how the approach compares and contrasts with traditional antibody-based approaches to biomarker discovery</li>
</ul>
<blockquote>
Presenter: Prof. Dr. Hanno Steen (Associate Professor of Pathology Principal Investigator in the Department of Pathology and Director of Proteomics Harvard Medical School)
</blockquote>

Bruker: High-Throughput Plasma Profiling for Enhanced Biomarker Discovery

High-Throughput Plasma Profiling for Enhanced Biomarker Discovery

In this webinar, you’ll learn about novel high-throughput plasma proteomics pipeline designed for large-scale biomarker discovery studies.

High-Throughput Plasma Profiling for Biomarker Discovery

Join us as we delve into the essential principles of Capillary Electrophoresis (CE) and explore its diverse applications across various scientific disciplines. Our industry expert Nandakumar Sundaramoorthy, Ph.D. will share valuable insights and practical knowledge to enhance your understanding of CE.
<h5>Discussion points:</h5>
<ul>
<li>CE and CE-MS: general theory, instrumentation and it&#39;s classification, applications and therapeutic areas</li>
<li>Significance of CE in the world of biotherapeutics and other bio-related products</li>
<li>Breakthrough of CE-based separation in novel biologics</li>
<li>Case study: CE-SDS and cIEF/CZE related problems, root cause and solutions</li>
<li>Quality control, regulatory expectations, and pharmacopeial evolution for CE-based methods</li>
</ul>
<blockquote>
Presenter: Dr. Nandakumar Sundaramoorthy
</blockquote>
<blockquote>
He is a scientific professional with nearly two decades of global experience, holding a Ph.D. in Applied Proteomics. He is currently the Director - Analytical Development and Characterization at Kemwell Biopharma Pvt Ltd. He has a proven track record of successfully leading end-to-end projects, specializing in protein characterization.
</blockquote>

SCIEX: Fundamentals of capillary electrophoresis (CE)

Fundamentals of capillary electrophoresis (CE)

Seznamte se s námi se základními principy kapilární elektroforézy (CE) a prozkoumejte její rozmanité aplikace v různých vědních oborech.