EU Regulation 396/2005: Pesticide Residue Testing and the Critical Role of QuEChERS Evaporation in Food Safety

Our Library never stops expanding. What are the most recent contributions to LabRulezGCMS Library in the week of 4th May 2026? Check out new documents from the field of the gas phase, especially GC and GC/MS techniques!<blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library">SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT GCMS AND RELATED TECHNIQUES</a></blockquote><blockquote>👉 Need info about different analytical techniques? Peek into <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library">LabRulezLCMS</a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library">LabRulezICPMS</a> libraries.</blockquote>This week we bring you application note by Shimadzu, presentation by MDCW / JEOL and technical note by Thermo Fisher Scientific!<h3>1. MDCW / JEOL: Flow-Modulated GCxGC-QMS Analysis Without Splitting Off the GC Flow</h3><ul><li>Presentation</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/O_16_Jensen_11e29d5022.pdf">Full PDF for download</a></li></ul><section><div><div><div><div><div><div>This presentation by Kirk Jensen (JEOL USA) explores the feasibility of performing flow-modulated comprehensive two-dimensional gas chromatography (GC×GC) coupled with quadrupole mass spectrometry (QMS) without splitting the GC flow, which is traditionally required to protect MS systems from high carrier gas flows. The core concept builds on GC×GC, where compounds are separated using a primary and secondary column connected via a modulator, significantly increasing separation power compared to one-dimensional GC. The presentation contrasts thermal modulation (offering sharper peaks and higher theoretical sensitivity but requiring cryogenic cooling) with flow modulation, which avoids cryogens, handles volatile analytes well, and is more flexible, but typically demands higher gas flows that standard MS systems cannot tolerate .To address this limitation, the study utilizes the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=24&amp;search=JMS-Q1600GC">JEOL JMS-Q1600GC</a> UltraQuad quadrupole GC-MS system, which can accept unusually high carrier gas flows (up to ~20 mL/min), enabling direct coupling with a SepSolve INSIGHT flow modulator without splitting the effluent . The analytical setup includes dual GC columns (e.g., Zebron ZB-5MSplus for the first dimension and BPX50 for the second), high secondary flow rates (~25 mL/min), and electron ionization (EI) MS detection. Additional system components include optional FID detection, bleed line control, and ChromeSpace software for data processing . This configuration allows full analyte transfer into the MS, eliminating the need for flow splitting and potentially improving detection efficiency.Experimental results demonstrate the applicability of this approach to complex mixtures, including a pesticide mixture containing over 200 compounds and real-world samples such as perfumes and fuels. The GC×GC-MS system produced detailed two-dimensional chromatograms with high spectral quality, enabling the correct identification of approximately 120 compounds despite relatively moderate spectral match factors . Comparisons at different flow rates (e.g., 25 vs. 50 mL/min) showed that spectral integrity and compound identification remain robust, indicating that higher flow operation does not significantly compromise MS performance.In conclusion, the work demonstrates that flow-modulated GC×GC-QMS without flow splitting is feasible, provided that the MS system can tolerate high carrier gas flows. While further optimization is needed (e.g., column selection, inlet pressure, and separation conditions), the approach offers a practical alternative to thermal modulation by eliminating cryogens and simplifying operation. Future work will focus on improving sensitivity, optimizing separations, and exploring alternative carrier gases such as hydrogen to reduce costs and expand applicability</div></div></div></div></div></div></section><h3>2. Shimadzu: Detailed Hydrocarbon Analysis by Nexis GC-2030 Using ASTM D6730</h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/an_01_00863_en_eb633bc741.pdf">Full PDF for download</a></li></ul><h5>User Benefits</h5><ul><li>Detailed compositional analysis of gasoline in accordance with ASTM D6730 is feasible using the Nexis GC-2030.&nbsp;</li><li>By employing PONAsolution, a PONA/DHA analysis software, laborious identification tasks can be reduced, and quantitation calculations and report generation can be performed automatically.</li></ul>ASTM D6730 specifies the analysis of hydrocarbons in gasoline and oxygenates such as ethanol, methyl tert-butyl ether (MTBE), and ethyl tert-butyl ether (ETBE) over a boiling point range up to 225 ̊C. Identification and quantification of individual compounds in gasoline are critically important for refinery process control and product quality assurance. In this application news, we report compositional analysis of gasoline conforming to ASTM D6730 using the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=1&amp;search=Nexis+GC-2030">Nexis GC-2030 gas chromatograph</a>. Gasoline typically comprises over 100 hydrocarbons, making identification tasks highly complex; however, PONAsolution, a PONA/DHA analysissoftware,simplifies this process.<h4>PONAsolution</h4>PONAsolution Ver.6 provides retention index libraries for each relevant standard (ASTM D6730, D6729, D5134, D6733). Identification of n-alkanes automatically corrects the retention times of the remaining several hundred components, thus streamlining the identification process. When only a specific retention region requires adjustment, the two-point identification function is useful (Fig. 1). In the two-point identification procedure, reference and sample chromatograms are compared while assigning corresponding peaks. First, click on an identified component mark in the reference data (Fig. 1, a), then click the matching sample peak (Fig. 1, b). Repeat this for a second pair of peaks. The retention times of components between these two anchor points are then automatically corrected.<h4>Conclusion</h4>Compositional analysis of gasoline in accordance with ASTM D6730 was performed. The combination of SH PONA Tuning Column and SH-1 PONA main column enabled separation of compounds with closely spaced retention times. Moreover, use of PONAsolution software greatly simplifies complex identification tasks.<h3>3. Thermo Fisher Scientific: Fiber optic probes add flexibility to Raman chemical analysis</h3><ul><li>Technical note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/drx3_flex_tech_note_tn54708_bebb56b870.pdf">Full PDF for download</a></li></ul>Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy are non-destructive analytical techniques that rely on the interaction of electromagnetic radiation with molecular vibrations to provide information about the chemical composition and structure of a sample. Despite their similarities, there are some distinct differences between the two techniques. In principle, FTIR is based on the absorption of infrared radiation by molecules and measures changes in dipole moment during molecular vibrations. Raman spectroscopy, on the other hand, is based on the inelastic scattering of monochromatic light and measures changes in polarizability during molecular vibrations.&nbsp;When applied to bulk chemical analysis, both FTIR and Raman spectroscopy can be used to analyze solids, liquids, and gases, but the nature of Raman spectroscopy lends some unique sampling advantages. Additionally, Raman often requires little to no sample preparation. Presented herein are application examples that highlight some of the sampling advantages of Raman spectroscopy. All the spectral data in this technical note were collected using a <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2238">Thermo Scientific™ DXR3 Flex Raman Spectrometer</a> equipped with a fiber optic probe. (Fiber optics are readily available for Raman spectroscopy because of the use of visible and NIR light and do not require the exotic materials associated with FTIR fiber optics.) Preliminary tests for all samples were carried out using both 532 nm and 785 nm excitations, and it was determined that the 785 nm laser set gave an overall better balance between fluorescence and Raman scattering efficiency.<h4>Summary&nbsp;</h4>In this technical note, the analyses of a variety of samples by Raman spectroscopy are demonstrated. All samples were analyzed without sample preparation.&nbsp;<ul><li>Precise and localized analysis at the focal point of the Raman-exciting laser allows sampling through glass bottles, blister packaging and plastic containers, which eliminates possible cross contamination and analyst exposure to hazardous materials. The contributions from the packaging and containers depend on the type of container material, the container thickness, and the materials’ chemical compositional complexity, but these contributions can be readily subtracted out when needed.&nbsp;</li><li>Water is a weak Raman scatterer. Raman therefore has reduced water sensitivity, making it a preferred technique for aqueous solution analysis over FTIR. As demonstrated in the analysis of an energy drink, the Raman bands from water can be subtracted from the spectrum of the aqueous solution, leading to the identification of the components of the solution.&nbsp;</li><li>Raman spectroscopy is well suited for the analysis of inorganic materials, especially in identifying the crystal phases and polymorphs, as demonstrated by the analyses of minerals and pigments in a painting.&nbsp;</li><li>Fiber optic probes provide flexibility and ease of maneuverability. This is particularly advantageous when analyzing samples that are difficult to access or manipulate, such as large containers, geological samples and paintings</li></ul>The DXR3 Flex has multiple sampling options available. A properly configured fiber-optic probe is arguably the most versatile accessory for the analysis of bulk solids and liquids. The advantages, both from those inherent to Raman spectroscopy and those resulting from the use of fiber optic probe, provide opportunities for a wide variety of different applications when using the DXR3 Flex Raman Spectrometer.

News from LabRulezGCMS Library - Week 19, 2026

🎤Francis Femi OloyIn this episode of Concentrating on Chromatography, David speaks with Francis Femi Oloy about using chromatography to uncover hidden pollutants in real-world water systems.Femi’s team analyzed polychlorinated biphenyls (PCBs) in six major rivers in southwestern Nigeria — compounds that were banned decades ago but still persist in the environment. Using a workflow that many analytical labs will recognize — liquid–liquid extraction, cleanup, rotary evaporation, nitrogen blowdown, and GC-ECD detection — they quantified 25 PCB congeners at trace levels and linked the results to ecological and human health risk.<h4>In this conversation, we cover:</h4><ul><li>Why legacy pollutants like PCBs still show up today</li><li>Choosing GC-ECD vs LC-MS for halogenated compounds</li><li>Liquid–liquid extraction and matrix cleanup strategies</li><li>Why sample concentration is critical for dilute environmental samples</li><li>How rotovap + nitrogen blowdown work together without losing volatile analytes</li><li>Seasonal trends (why wet season levels were higher)</li><li>Translating concentration data into meaningful risk assessments</li></ul><h3>Video Transcription</h3><section><div><div><div><div><div><div>Persistent organic pollutants such as polychlorinated biphenyls (PCBs) remain a significant environmental concern despite decades of regulatory restrictions. In this interview, Francais Femi Oloy discusses the environmental and analytical challenges associated with monitoring PCB contamination in rivers of southwestern Nigeria, a rapidly industrializing region where urban growth, industrial activity, agriculture, and dense populations intersect with extensive aquatic systems.Oloy explains that his interest in environmental contaminant analysis emerged from observing unexplained health problems and environmental degradation while growing up in Nigeria. This motivated his transition into organic and environmental chemistry, with a focus on identifying pollutants present in drinking water, agricultural soils, and food systems. Southwestern Nigeria, particularly the Lagos region, represents a critical environmental monitoring area due to intense industrial development, shipping activity, and widespread human dependence on rivers for domestic use, agriculture, and fishing.Although PCBs are considered “legacy pollutants” and are no longer intentionally produced, the interview highlights why they continue to persist in aquatic environments. Old electrical transformers and aging industrial equipment still contain PCB residues, while historical contamination stored in river sediments can become remobilized during flooding, dredging, or sediment disturbance. Because PCBs are hydrophobic and resistant to degradation, they preferentially accumulate in sediments and bioaccumulate through aquatic food chains, creating long-term environmental and human exposure risks.A major focus of the discussion centers on the analytical workflow used for PCB determination in environmental water samples. Composite river water samples were collected in amber glass bottles to avoid contamination and photodegradation, preserved with sodium azide to minimize microbial activity, and stored under cooled conditions prior to extraction. The analytical protocol employed liquid–liquid extraction using dichloromethane (DCM) and hexane to recover both polar and nonpolar PCB congeners. Oloy emphasizes that liquid–liquid extraction was selected over solid-phase extraction (SPE) because of concerns about congener retention within sorbent materials and clogging issues associated with large-volume environmental samples.Following extraction, concentration and cleanup represented critical analytical stages due to the trace-level occurrence and volatility of PCBs. Silica and alumina cleanup procedures were used to remove matrix interferences prior to instrumental analysis. The concentration workflow combined rotary evaporation for bulk solvent reduction with nitrogen blowdown for final volume reduction to less than 1 mL, while carefully avoiding excessive temperature or complete dryness to minimize analyte loss. Oloy repeatedly stresses that improper concentration procedures are among the most common causes of analytical failure in PCB analysis.For instrumental determination, the study utilized gas chromatography coupled with electron capture detection (GC-ECD) rather than LC-MS or GC-MS. According to Oloy, GC was preferred because PCBs are sufficiently volatile for gas chromatographic separation, while ECD provided superior sensitivity and selectivity for chlorinated compounds at environmentally relevant concentrations. The interview also discusses analytical validation strategies, including the use of surrogate standards to assess recoveries, which ranged from approximately 85% to 114%, and signal-to-noise-based determination of detection limits.The study further examined seasonal variations in PCB concentrations, revealing higher levels during the wet season. This observation was attributed to rainfall-driven runoff from contaminated infrastructure, sediment resuspension, and lower temperatures that reduce volatilization losses. To communicate toxicological relevance beyond simple concentration reporting, the researchers also calculated toxic equivalency values (TEQs), converting mixtures of PCB congeners into biologically meaningful toxicity estimates comparable to dioxin toxicity metrics.Beyond environmental monitoring, Oloy highlights broader research interests focused on pollutant remediation and sustainable environmental protection. His group is also involved in developing catalytic materials capable of degrading or removing persistent contaminants from environmental systems. Throughout the discussion, he emphasizes that analytical chemistry plays a central role not only in detecting pollutants, but also in enabling prevention, remediation, and long-term environmental management strategies.</div></div></div></div></div></div></section><blockquote>This text has been automatically transcribed from a video presentation using AI technology. It may contain inaccuracies and is not guaranteed to be 100% correct.</blockquote><blockquote><h4>Concentrating on Chromatography Podcast</h4>Dive into the frontiers of chromatography, mass spectrometry, and sample preparation with host David Oliva. Each episode features candid conversations with leading researchers, industry innovators, and passionate scientists who are shaping the future of analytical chemistry. From decoding PFAS detection challenges to exploring the latest in AI-assisted liquid chromatography, this show uncovers practical workflows, sustainability breakthroughs, and the real-world impact of separation science. Whether you’re a chromatographer, lab professional, or researcher you'll discover inspiring content!You can find Concentrating on Chromatography Podcast in podcast apps:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL">Spotify</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185">Apple podcast</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography">podscan</a></li></ul>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos">YouTube channel</a></blockquote>

Tracking Toxic PCBs in River Water using Gas Chromatography–Electron Capture Detection

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Leaks are problematic for any operation that uses gas tubing and fittings. Even small gas leaks can lead to safety issues, reduced productivity, and increased costs.
<ul>
<li>Leaks can introduce water and air into the gas flow and tubing.
</li>
<li>Persistent, unidentified leaks can saturate gas filters faster than expected and cause decreased sensitivity and/or elevated baselines in instrument detectors, such as GC, GC/MS, ICP-MS, or ICP-OES.
</li>
<li>Leaks can also lead to shortened lifetimes of some consumables, especially in GC systems.
</li>
<li>Further, leaks allow the gas to flow out of the fitting and can cause loss of production and revenue if trying to produce or collect and supply the gas.
</li>
</ul>
Also, if gas is being consumed at a higher rate than expected because of leakage, gas supply costs will increase. Checking for and eliminating leaks from the gas source to the terminus can reduce safety concerns and reduce costs through decreased use of cylinders or fewer refills by the gas supply company.
Join us as we explore how to identify signs of leaks, address any existing leaks, and prevent future leaks.
<blockquote>
Presenter: Alex Ucci (Application Engineer, Agilent Technologies, Inc.)
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In his current position at Agilent, Alex provides application assistance and technical support for sample preparation products as well as GC and LC consumables. Before he joined Agilent in 2014, Alex was a graduate student at the Pennsylvania State University researching the morphology and surface properties of aerosol particles using a wide variety of analytical techniques. He has an MS degree in chemistry.
</blockquote>

Agilent Technologies: Sealing the Deal: Strategies for Leak-Free GC

Sealing the Deal: Strategies for Leak-Free GC

We explore how to identify signs of leaks, address any existing leaks, and prevent future leaks.

As part of the global effort to reduce CO₂ emissions, biofuels are becoming an increasingly important source of green energy.
Quality control testing of biofuels is therefore crucial to ensure the efficiency and reliability of biogas, biodiesel, and fuel ethanol. 
In this webinar you will learn about the latest laboratory testing techniques that are used to ensure the quality, efficiency, and sustainability of modern biofuels to enable producers to confidently meet international regulatory requirements and to promote their widespread adoption in both industry and the wider society at large. 
Experts from Agilent Technologies will introduce a wide range of analytical testing solutions covering multiple technologies that are routinely used to detect organic and inorganic impurities in biodiesel and enable the stringent quality control of fuel ethanol, biogas and biogas blends to be achieved. The expert panel will be available to answer questions from the audience at the end of the presentation. 
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Presenter: Danny van Oevelen (LC Product Specialist, Agilent Technologies)
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<blockquote>
Presenter: Luca Godina (GC &amp; GC/MS Application Specialist, Agilent Technologies)
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<blockquote>
Presenter: Sebastien Sannac (Spécialiste produit spectroscopie atomique, Agilent Technologies)
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<blockquote>
Presenter: Donald Inglis (Product Specialist EMEAI for FTIR, Agilent Technologies)
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Presenter: Remko van Loon (GC &amp; GC/MS Product Specialist, Agilent Technologies)
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Agilent Technologies: Comprehensive Quality Control Testing of Biofuels to Ensure a Greener, more Sustainable Future

Comprehensive Quality Control Testing of Biofuels to Ensure a Greener, more Sustainable Future

Learn about the latest laboratory testing techniques that are used to ensure the quality, efficiency, and sustainability of modern biofuels.

Comprehensive Quality Control Testing of Biofuels

Join Agilent and GERSTEL for a 3-day live virtual seminar discussing how you can assure safety, authenticity, and quality of alcoholic beverages. The focus will be on sharing the latest in technology developments and capabilities, new applications, and customer stories.<h4>Presentation 1: GC-MS Technology for Non-Alcoholic Beer Flavor Improvement and Off-Odor Identification</h4><ul><li>Tiffany Crawford, Lead Scientist 1 – Analytical, Kalsec Inc.</li></ul>Non-alcoholic and low alcoholic beers are growing in demand worldwide. However, dealcoholization and arrested fermentation lead to changes in the overall aroma and flavor profiles compared to full strength beer analogues. This webinar will discuss a semi-targeted method developed using DHS-GC-MS technology that allows for improvement of NA beer flavor through the addition of specialized hops products. This webinar will also discuss the use of GC-MS-O technology to determine the source of off-odors in a plant extract matrix.<h5>Key Learning Objectives/What attendees will learn:</h5>1. Understand the analytical challenges in the determination of off-flavors and odors in complex matrix.2. How a combination of Gerstel and Agilent Instrumentation improves GC-MS analysis and understanding of negative sensory characteristics identified in beer.3. How analytical techniques can be used to identify and solver sensory issues in food and beverage matrices.<h5>Who Should Attend:</h5><ul><li>Chemists and lab managers from contract testing labs and the food and beverage industry</li></ul><h4>Presentation 2: Single Analysis of Beer Volatile Compounds in Two Channels FID and ECD with GC Intuvo</h4><ul><li>Celso Blatt, Pre-Sales Application Engineer, Agilent</li></ul>One single injection for determination/analysis of 12 volatile compounds in beer using an Agilent 7697A Headspace Sampler integrated with the Intuvo 9000 GC System. The use of a Splitter that divides the sample 1:1 allows simultaneous analysis in two capillary columns with different stationary phases and FID and ECD detectors. This saves time and avoids a second GC for these two important analyzes for beer quality control. The DB-WAX column with the FID was used for the main volatile compounds in beer and the HP-5MS column was used with the ECD for the ketones that can cause undesirable odors in beer and are in low concentrations.<h5>Key Learning Objectives/What attendees will learn:</h5>1. Single injection beer analysis2. Saving time and instrument3. Ease to use<blockquote>Presenter: Tiffany Crawford (Lead Scientist 1 – Analytical, Kalsec Inc.)Tiffany Crawford works for Kalsec Inc. as a Lead Scientist in the Hops business unit. In her position at Kalsec, she develops methods using GC-MS and LC-MS technology for the detection of small molecules of interest in different food matrices. She holds a Ph. D. in Chemistry from the University of North Carolina at Chapel Hill.Presenter:&nbsp;Celso Blatt (Pre-Sales Application Engineer, Agilent Technologies do Brasil)Graduação em Química Industrial pela UFSM de Santa Maria, RS. Mestrado e Doutorado em Química Analítica pela USP, SP. Pesquisador em instrumentação analítica na Instrumentos Científicos CG Ltda - SP de 1987 a 1992. Engenheiro de suporte e depois cientista de aplicações na Hewlett Packard / Agilent Technologies Brasil desde 1992 até hoje.</blockquote>

Agilent Technologies: Alcoholic Beverages Virtual Symposium: Beer

Alcoholic Beverages Virtual Symposium: Beer

How you can assure safety, authenticity, and quality of alcoholic beverages.

Volatile profiling of food and beverages is crucial for understanding and enhancing their quality, safety, and consumer appeal. Analysing these volatiles presents several challenges due to the diversity of chemical classes, their varying concentrations, and the complex matrices involved, which can be problematic for conventional gas chromatography–mass spectrometry (GC–MS) approaches.Join Prof. Kieran Kilcawley, Principal Research Officer at Teagasc Food Research Centre and Adjunct Professor, University College Cork and Technological University Dublin, as he explores how innovative extraction and enrichment techniques, combined with state-of-the-art GC–MS analyses, can overcome these difficulties and deliver more detailed and accurate volatile profiles.Key learning objectives<ul><li>Understand the critical role volatile compounds play in shaping the flavor and overall quality of food and beverages</li><li>Learn about the latest techniques for the sensitive extraction and analysis of aroma-active compounds, including high-capacity sorptive extraction and comprehensive two-dimensional gas chromatography (GCxGC).</li><li>Explore practical applications through case studies, including volatile profiling of whiskey, analysis of fatty acids in dairy products, and evaluating the impact of cooking temperature on the volatile profile of beef</li></ul>Who should attend?<ul><li>Food scientists who want to understand more about profiling, odour perception, sensory evaluation, and food authenticity analysis.</li><li>R&amp;D food scientists and analytical scientists who want to enhance their understanding of analysing complex samples.</li><li>GC(–MS) users eager to hear about the latest instrument developments.</li></ul>Certificate of attendanceAll webinar participants can request a certificate of attendance, including a learning outcomes summary, for continuing education purposes.<blockquote>Presenter: Prof. Kieran Kilcawley (Principal Research Officer, Teagasc Food Research Centre and Adjunct Professor, University College Cork and Technological University Dublin)Prof. Kieran Kilcawley oversees the flavor chemistry facility at Teagasc, where he conducts extensive research on flavors in various foods and beverages. He became an Adjunct Professor in the Department of Food and Nutritional Sciences at University College Cork in 2020 and in the School of Food Science and Environmental Health at the Technological University Dublin in 2024. His expertise encompasses advanced gas chromatography and mass spectrometry, including olfactometry, as well as aroma extraction, method development and validation, data processing, and chemometrics.Moderator: Carrie Haslam (Associate Editor, SelectScience)</blockquote>

SelectScience: Investigating the impact of volatile compounds on the flavor profiles of foods and drinks

Investigating the impact of volatile compounds on the flavor profiles of foods and drinks

Innovative extraction and enrichment techniques with GC–MS analyses for detailed and accurate volatile profiles.

Impact of volatile compounds on the flavor profiles

Who Should Attend:<ul><li>Anyone who would like to gain more knowledge on PAH analysis with GC columns&nbsp;</li><li>Any scientists who is struggling with resolution on PAHs with GC analysis</li></ul>Key Learning Points:<ul><li>Learn about columns with different selectivities in PAH analysis&nbsp;</li><li>Understand the pain point in PAH analysis in food and environmental industry</li><li>Find what are the parameters to adjust to improve the resolution in GC&nbsp;</li></ul><blockquote>Presenter: Grace Guo (Senior Technical Specialist, Phenomenex)Grace Guo graduated from the Johns Hopkins University with a Master’s degree in Material Science and Engineering. She joined Phenomenex Technical Team in 2017 providing technical support globally. With more than 8 years of experience on SPE, HPLC and GC, she delivered 50+ seminars and webinars globally covering food and environmental, clinical, pharma and biopharma industry.&nbsp;</blockquote>

Phenomenex: GC Column Selectivities for PAH Compounds

GC Column Selectivities for PAH Compounds

Learn about columns with different selectivities in PAH analysis

Following up from our very successful previous sessions, we are delighted to offer another panel discussion in the ever-popular “Ask the Agilent Experts” series.Have you ever had a question about your GC/GCMS analysis and thought, “I have no idea what to do,” or that since the question seemed so simple, everyone must already know the answer and “Am I the only one who doesn’t know what to do?” We can assure you that you are not alone.If you have a question, we can guarantee that you are not the first…nor the last person to ask the question, especially when it comes to gases. Sometimes the simplest of questions can have the most complex answers. A question about the leaks on your mass spectrometer can lead to a discussion about how gas quality impacts sensitivity. A question about what to do when converting a method from helium to hydrogen carrier gas can lead to a discussion about column dimensions, column bleed, and what thermal stability means. There’s no such thing as an easy answer because the answer always depends on many different factors.Experts from Agilent, as well as from the field, will discuss some of the most frequently asked questions about GC and GCMS (which may seem like simple questions but have anything but simple answers). We'll also answer new questions that we hope you will submit to us.By attending this webinar, you will learn:<ul><li>How different carrier gases impact results and what to consider when converting methods from one carrier gas to another.</li><li>What is column bleed, how it relates to thermal stability, how your carrier gas can impact it, and why it matters even when using selective detectors like mass specs.</li><li>What is the difference between gas cylinders and gas generators, and should you consider using gas saving measures when using a generator.</li></ul>What you need to know:Date: 7th November, 2024Start times:<ul><li>Broadcast #1: 7th November - 7:00 PST (Los Angeles) / 9:00 CST (Chicago) / 10:00 EST (New York) / 15:00 GMT (London) / 16:00 CET (Paris/Berlin)</li><li>Broadcast #2: 7th November - 11:00 PST (Los Angeles) / 13:00 CST (Chicago) / 14:00 EST (New York)</li><li>Broadcast #3: 8th November - 8:30 IST (New Delhi) / 11:00 SGT (Singapore) / 11:00 CST (Shanghai) / 12:00 JST (Tokyo) / 14:00 AEDT (Sydney) / 16:00 NZDT (Auckland)</li></ul>Duration: Approximately 60 minutes<blockquote>Presenter: Vanessa Abercrombie (MFS, GC Applications Chemist, Agilent Technologies)Vanessa Abercrombie is a GC applications chemist at Agilent Technologies in Folsom, California, USA. Vanessa has a broad background in GC and GC/MS, including experience as an instrument chemist at Bode Technology in Virginia working under contract to the FBI’s Laboratory Division. Prior to that, Vanessa worked for ETS Labs in St. Helena, California, as an analytical chemist, where she researched and developed quantitative separations by GC/MS and UHPLC for beer, wine, and spirits. She holds a Masters of Forensic Science from The George Washington University and a Bachelor of Arts in Chemistry from Sonoma State University.Presenter: Ed Connor (Product Manager, PEAK Scientific Instruments)Ed joined PEAK in 2013 as a GC product specialist and then moved to product management. He’s been working on many collaborative projects with PEAK customers and major instrument manufacturers worldwide. The main focus of these collaborations has been looking at conversion from helium to hydrogen carrier gas for GC applications. Ed completed his Dr.Sc. at ETH Zurich in 2007 using GC-MS to look at herbivore-induced plant volatiles and their interaction with beneficial insects. He then joined the University of Zurich where his work focused primarily on floral volatile analysis using a variety of volatile collection methods, GC-MS, and GC-FID.Moderator: Diane Turner (Director &amp; Senior Consultant, Anthias Consulting Ltd)A Warwick University graduate, Diane completed her Master's in analytical chemistry and started her career in environmental chemistry, later gaining significant experience as an applications chemist. Diane’s area of research through her PhD studies at The Open University was disease diagnosis. She has developed methods and given support and training for companies in most industries around the world for more than 20 years. Diane holds voluntary roles with The Royal Society of Chemistry and other scientific organizations.</blockquote>

Separation Science: Ask the Agilent Experts Series – Part 6: The Gas Edition

Ask the Agilent Experts Series – Part 6: The Gas Edition

GC and GC/MS scientists discuss and answer more of your most frequently asked questions.

Ammonia (NH3) has significant potential as a clean energy source. Made of hydrogen and nitrogen, NH3 itself can be burned as a carbon-free fuel. It also provides a convenient way to transport and store clean hydrogen, facilitating the global journey to Net Zero. Ammonia may play an essential role in the decarbonization of hard-to-abate sectors, such as shipping, power generation, and heavy-duty transportation, which will accelerate the global journey to Net Zero and sustain future generations. With ammonia-based, emission-free, high energy-density power solutions constantly improving, there is a clear need for monitoring reactants and contaminants. These measurement devices should be able to measure required components (NH3, H2, N2, and H2O) over a wide concentration range, have short cycle times, be inert towards reactants, and, if possible, be able to monitor multiple reactor systems or lines. This webinar describes how the Agilent 990 Micro GC is used to quantitatively measure NH3, H2, N2, and H2O simultaneously in various ammonia-based sample streams, providing a robust analytical solution that can handle a broad range of conditions up to 100% ammonia, without compromising performance.By attending this webinar, you will learn about:<ul><li>The role of ammonia in decarbonizing today’s energy markets</li><li>A review of key analytical performance parameters for ammonia detection</li><li>The Agilent 990 Micro GC and how to set it up for analysis of various ammonia-related sample streams</li></ul>Why should you attend?To gain a better understanding of the value micro-GC can bring to catalytic research projects including both laboratory R&amp;D as well as piloting.Who should attend?Laboratory technicians, researchers, and scientists wishing to learn more about how the Agilent Micro GC can be a great solution for catalytic reaction monitoring.What you need to know:Date: 19 &amp; 20 November, 2024Start times:&nbsp;<ul><li>Broadcast #1: 19 November - 7:00 PST (Los Angeles) / 9:00 CST (Chicago) / 10:00 EST (New York) / 15:00 GMT (London) / 16:00 CET (Paris/Berlin)</li><li>Broadcast #2: 19 November - 11:00 PST (Los Angeles) / 13:00 CST (Chicago) / 14:00 EST (New York)</li><li>Broadcast #3: 20 November - 8:30 IST (New Delhi) / 11:00 SGT (Singapore) / 11:00 CST (Shanghai) / 12:00 JST (Tokyo) / 14:00 AEDT (Sydney) / 16:00 NZDT (Auckland)</li></ul>Duration:&nbsp;Approximately 60 minutes<blockquote>Presenter: Dr. Tomas Ricciardulli (Catalyst Scientist, Amogy, Inc.)Tomas Ricciardulli is a Catalyst Scientist at Amogy, a technology startup located in Brooklyn, New York, which develops systems for the conversion of ammonia to power. His work focuses on the production and purification of hydrogen gas from liquid anhydrous ammonia. Tomas has a background in heterogeneous catalysis, a multidisciplinary field that, among other techniques, extensively uses gas chromatography for product and reactant analysis. After earning a Bachelor of Science degree in Chemical Engineering from Cornell University in 2017, Tomas defended his Chemical Engineering Ph.D. thesis in 2022 at the University of Illinois, Urbana-Champaign where he used an Agilent 7890 GC to study the active site requirements for the H2O2 synthesis reaction.Presenter: Rob de Jong (Product Manager - Micro GC, Agilent)Rob de Jong is Product Manager for micro GC at Agilent. He has a background in analytical chemistry science. After getting a BSc degree in Hogeschool Utrecht / University of Applied Sciences, he has been working in the field of mainly gas chromatography for over 30 years, holding different positions in sales, R&amp;D, application development, project and product management. After being involved in the initial development of the 4900 PRO as R&amp;D chemist in the early 2000s, he has reconnected with the micro GC product as Product Manager at Agilent.</blockquote>

Separation Science: Catalytic Ammonia Cracking: Reaction Monitoring from Zero to >99.99% Conversion using the Agilent 990 Micro GC

Catalytic Ammonia Cracking: Reaction Monitoring from Zero to >99.99% Conversion using the Agilent 990 Micro GC

Gain a better understanding of the value micro-GC can bring to catalytic research projects including both laboratory R&D as well as piloting.

Zero to >99.99% Conversion using the Agilent 990 Micro GC

Following the success of our last Ask the Expert session, we’re back with a part 2 focusing on GC and GC/MS workflows. This time, our panel is discussing your questions on maintenance, troubleshooting, and column care. Whether you’re aiming to improve accuracy, solve recurring issues, maximize productivity, and extend the life of your GC or GC/MS system, this session is for you. Our expert panel will address key challenges and share best practices, tips, and tricks to keep your GC/GCMS in peak condition while answering your burning questions.Key Topics:<ul><li>How to maintain your GC/GCMS for optimal performance</li><li>Troubleshooting common issues in GC and GC/MS</li><li>Best practices for column care and extending your column’s life</li><li>Tips for improving accuracy and reproducibility in results</li><li>How to ensure efficiency and productivity across your workflows</li></ul>Who Should Attend:<ul><li>Lab managers, analysts, and technicians using GC or GC/MS</li><li>Anyone looking to optimize their GC workflows for long-term performance</li></ul><blockquote>Presenter: Dr. Anshu Kumari Singh (Technical Support Manager, Agilent Technologies)Dr. Anshu Kumari Singh is the Technical Support Manager for India in the Chemistries and Supplies Division. She has more than 20 years of experience in this industry. She is leading a team of highly qualified Individuals responsible for providing technical support to customers. She provides support to customers on queries related to applications, products and troubleshooting for GC and LC columns and Supplies. She also conducts workshops, trainings and seminars for the customers helping them in understanding the chemistry behind GC &amp; HPLC columns and Sample Preparation Products. Dr. Anshu holds a Doctorate degree from Indian Agricultural Research Institute, New Delhi and is based out of Delhi.Presenter:&nbsp; Mr. Praveen Arya (Application Engineer - GC/MS, Agilent Technologies)Praveen Arya, Application Engineer at Agilent technologies, has a commitment and appreciation for Gas-phase residue applications. In 2005, Mr. Praveen Arya completed his M.Sc. in Food Technology . After post-graduation, he served as a Senior Analyst at SGS, Gurgaon- a commercial testing laboratory for 6 years and developed expertise in Residue analysis using sophisticated chromatographic instruments such as LCMS and GCMS. After that, in 2011, He joined Agilent Technologies as an Application Engineer where he supported country-wide GCMS customers for resolving application issues and method development. He has more than 18 years of experience in residue analysis in food and environmental samples using various high end chromatographic and spectrometric techniques (GC, GCMS, GCMS/MS, TDS, Headspace, Purge &amp; trap etc.). His area of specialization includes new analytical method development and validation as per national and international guidelines.Presenter:&nbsp; Mr. Anuraj Kumar (Customer Application Engineer - GC/GCMS, Agilent Technologies)Anuraj has overall 10+ years of experience in handling Gas Phase products. Working with Agilent since 4+ years and looking for GC &amp; GCMS products as core Post Sales application engineer for PAN India. Previously he had worked with multiple pharmaceutical R&amp;D as an Research Scientist in Teva, Fresenius kabi &amp; Jubilant Life Sciences.Presenter:&nbsp; Mr. Sunil B Lakhmapure (Technical Support Specialist, Agilent Technologies)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: Decoding GC & GC/MS: Maintenance, Troubleshooting, and Best Practices

Decoding GC & GC/MS: Maintenance, Troubleshooting, and Best Practices

Challenges, best practices, tips, and tricks to keep your GC/GCMS in peak condition.

GC & GC/MS: Maintenance, Troubleshooting, Best Practices

The separation of compounds with very high vapor pressure (e.g., permanent gases, light hydrocarbons, volatiles) can either be performed on polysiloxane liquid phases under cryogenic conditions or with PLOT columns.Porous Layer Open Tubular (PLOT) columns offer a more convenient alternative, mainly because they can be operated at ambient GC oven conditions.PLOT columns are based on porous particles that are fixated to the inner wall of the capillary tubing and compounds are separated based on their difference in surface interactions with the solid stationary phase.In this webinar we will cover the principles of PLOT column separations and discuss an array of applications including permanent gases, light hydrocarbon isomers, sulfur compounds and oxygenates on Agilent’s comprehensive portfolio of PLOT columns.<blockquote>Presenter: Mark Sinnott (Application Engineer, Agilent Technologies, Inc.)Mark Sinnott works for Agilent Technologies as a Technical Support Engineer in the Consumables and Supplies Division (CSD). In his position at Agilent, Mark performs technical support and applications assistance to gas chromatographers worldwide. He has more than 22 years of experience in gas chromatography, including environmental analysis of compounds in air, soil and water matrices, including dissolved gas analysis for the electrical industry. Mark holds a Master’s Degree in Chemistry from California State University, Sacramento, and currently resides in Twin Falls Idaho.</blockquote>

Agilent Technologies: Becoming a Better Chromatographer - Educational Webinar Series

PLOT TWIST: Using PLOT Columns for the Analysis of Gasses and Very Volatile Compounds

We will cover the principles of PLOT column separations and discuss an array of applications including permanent gases, light hydrocarbon isomers...

Using PLOT Columns for the Analysis of Gasses

<div>Join us for the first-ever Semicon e-Symposium, a one-day virtual event featuring expert discussions on crucial topics in the semiconductor industry, including yield improvement, sustainability, PFAS analysis, and advanced analytical techniques.Here’s why you don’t want to miss this:<ul><li>Discover how leading-edge analytical solutions are driving innovation, featuring a plenary talk by Dr. Stefanie Fingerhut from Merck KGaA on transforming semiconductor materials for mobile technology.</li><li>Explore key advancements in vacuum technology and regulatory updates.</li><li>Gain actionable insights from experts in GC-ICP-MS, UV-Vis spectroscopy, and a special talk by Inès Tendero from Technic France on the analysis of silicon in high-purity matrices.</li></ul>This is a must-attend event for anyone looking to stay informed on key trends and cutting-edge advancements in semiconductor manufacturing. Don’t miss out—register today!<h4>Agenda</h4>8:30 a.m. How Analytical Techniques Contribute to Yield Improvement and Environmental Sustainability in the Semiconductor Industry<ul><li>Gernot Hudin, Agilent Technologies</li></ul>9:00 a.m. Plenary Talk: The Hidden Connection: Merck's Advanced Analytical Techniques Transforming Semiconductor Materials for Mobile Technology<ul><li>Dr. Stefanie Fingerhut, Merck KGaA</li></ul>9:45 a.m. Agilent ICP-MS Supplies Selection Tips for the Semiconductor Industry&nbsp;<ul><li>Alain Desprez, Agilent Technologies</li></ul>10:00 a.m. PFAS 'Forever Chemicals'—Forever a Problem?<ul><li>Shifen Xu, Agilent Technologies</li></ul>10:30 a.m. Quantitative Workflow for the Analysis of PFAS in Semiconductor Lubricant with LC-MS (Q-TOF)<ul><li>Peter Kornas, Agilent Technologies</li></ul>11:00 a.m. Agilent Vacuum in Semiconductor Market<ul><li>Fabio Ardissone, Agilent Technologies</li></ul>11:30 a.m. GC, GC/MS, and GC-ICP-MS in Semiconductor: What, Why, and How?<ul><li>Stephane Decouflet, Agilent Technologies</li></ul>12:00 p.m. Lunch break1:00 p.m. Semiconductor Application of Single Particle ICP-MS<ul><li>Yoshinori Shimamura, Agilent Technologies</li></ul>1:30 p.m. Is It Possible to Identify Organic Solvents by ICP-MS?<ul><li>Katsuo Mizobuchi, Agilent Technologies</li></ul>2:00 p.m. Special talk: Analysis of Si in High-Purity Matrix for Semiconductor Application&nbsp;<ul><li>Inès Tendero, Technic France</li></ul>2:30 p.m. Measuring the Band Gap Energy Using UV-Vis Spectroscopy<ul><li>Marcus Schulz, Agilent Technologies</li></ul>2:45 p.m. Recap—closing session<ul><li>Gernot Hudin, Agilent Technologies</li></ul></div>

GCMS webinars focusing on GC - page 9

Semicon e-Symposium 2024