Gas chromatography (GC) is an analytical technique used to separate and analyze compounds that can be vaporized without decomposition. In forensic science, GC is invaluable for identifying and quantifying substances present in various types of evidence.Gas chromatography offers several advantages that make it indispensable in forensic science:<ul><li>GC can detect and identify minute quantities of substances, even at trace levels, allowing forensic scientists to analyze small samples effectively.</li><li>It is capable of analyzing a wide range of volatile and semi-volatile compounds, making it suitable for various types of forensic evidence, including drugs, explosives, and environmental samples.</li><li>GC provides precise measurements of compound concentrations, which is essential for determining levels of substances such as blood alcohol content or drug quantities in forensic toxicology reports.</li><li>It can quickly separate and analyze compounds, enabling timely processing of forensic evidence, which is crucial in criminal investigations.</li><li>Combining GC with mass spectrometry enhances the ability to identify compounds with high accuracy, even in complex mixtures, by providing both separation and molecular identification.</li></ul>These advantages make gas chromatography a powerful tool in forensic investigations, aiding in the accurate detection and analysis of chemical substances found at crime scenes.<h4>How Gas Chromatography Works?</h4>In simple terms, gas chromatography involves the following steps:<ul><li>Sample Introduction: A small amount of the sample is injected into the chromatograph.</li><li>Vaporization: The sample is heated and vaporized.</li><li>Carrier Gas: An inert gas, such as helium or nitrogen, carries the vaporized sample through a column containing a stationary phase.</li><li>Separation: As the sample moves through the column, its components interact differently with the stationary phase, causing them to separate based on their chemical properties.</li><li>Detection: Separated compounds exit the column and are detected, producing a chromatogram - a visual output that displays the presence and quantity of each component.</li></ul><h4>Applications of Gas Chromatography in Forensics</h4>GC is an important l tool in forensic science, offering a wide range of applications that aid in the investigation and resolution of criminal cases. Here are some of the key applications:<h5>Drug Analysis and Toxicology</h5><ul><li>Drug Detection: GC is used to identify and quantify drugs in biological samples such as blood, urine, or hair. This helps determine if a suspect was under the influence during a crime and aids in postmortem toxicology to establish the cause of death.</li><li>Toxicology: GC helps detect toxic substances like poisons, which is vital for determining the cause of death and intent in criminal cases.</li></ul><h5>Arson Investigations</h5>GC is used to analyze fire debris for accelerant residues, helping investigators determine the cause of fires and identify potential arson.<h5>Crime Scene Analysis</h5>GC can analyze samples from crime scenes, such as blood or fibers, to identify substances and potentially link suspects to the scene.<h5>Forensic Pathology</h5>GC helps analyze bodily fluids to determine if alcohol, drugs, or poisons were present at the time of death, aiding in pathology conclusions.Forensic laboratories utilize advanced <a target="_blank" rel="noopener noreferrer" href="https://www.phenomenex.com/industries/forensic-toxicology">forensic toxicology solutions</a> to detect and analyze toxins and drugs in biological samples. Among these, <a target="_blank" rel="noopener noreferrer" href="https://www.phenomenex.com/techniques/gc">gas chromatography techniques</a> are essential for separating and identifying volatile compounds in complex mixtures, enhancing the accuracy of toxicological analyses.<h4>Challenges of Using GC in Forensics</h4>Despite its advantages, there are several challenges and considerations that forensic scientists must address when using GC in their investigations.<ul><li>One of the primary limitations of GC is the coelution of compounds, where multiple substances elute from the column at the same time, making it difficult to separate, identify and quantity them correctly.</li><li>GC requires careful sample preparation, including extraction and cleanup procedures, which can be time-consuming and require specialized equipment and expertise. This complexity can delay analysis and increase costs.</li><li>GC is primarily suited for the analysis of volatile and semi-volatile organic compounds. It is not suitable for many types of inorganic compounds or biopolymers, limiting its applicability in certain forensic contexts.</li><li>The presence of certain compounds in the sample can interfere with the accuracy of GC analysis, leading to false positives or false negatives. Additionally, matrix effects can affect the reliability of the results, requiring careful sample preparation and the use of internal standards to minimize these issues.</li></ul><h4>Important Factors to Consider When Using GC for Forensics</h4><ul><li>Ensuring that GC instruments are properly calibrated and validated is crucial for obtaining reliable results. Regular maintenance and quality control measures are essential to prevent instrument drift and ensure consistency in analysis. Specialized <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products?category=7&amp;manufacturerItems=50">gas chromatography</a> products are employed, ensuring precise and reliable results in forensic investigations.</li><li>The interpretation of GC data requires expertise, as the chromatograms can be complex, especially in cases involving mixtures of substances. Experienced analysts are needed to accurately identify and quantify components.</li><li>Forensic GC analyses must comply with legal standards and regulations. This includes adhering to specific protocols for sample handling, analysis, and reporting to ensure that evidence is admissible in court.</li><li>Combining GC with other analytical techniques, such as mass spectrometry (MS), can enhance its capabilities. For example, GC-MS is widely used in forensic analysis due to its ability to provide detailed information about the molecular weight and elemental composition of compounds.</li></ul>By understanding these challenges and considerations, forensic scientists can effectively utilize GC to analyze evidence.

Role of Gas Chromatography in Forensics

Autumn has already turned the leaves into vibrant shades, and with the end of the year approaching, we would like to thank you - before the first snowflakes arrive - for your trust, cooperation, and continued interest in our products and services.As a long-standing distributor of Thermo Scientific Finnpipette products, we know that the accuracy and reliability of laboratory results often begin with seemingly small details. Choosing the right pipette and tip is one of the first steps toward a successful analysis.That is why we have prepared an EXCLUSIVE offer to help you replenish your laboratory supplies at a more attractive price, while also thanking you for your continued cooperation and trust.<blockquote>EXCLUSIVE OFFER valid until the end of 2026<ul><li>10% off tips</li><li>10% off pipettes</li></ul>Enter the code “KAŠTANY” in your order or include it in your order e-mail.*For larger orders, an additional discount may be available.</blockquote><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/analytika_pipety_a_spicky_thermo_20c5943161.jpg" alt="analytika: Thermo Scientific Pipettes and Tips" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_analytika_pipety_a_spicky_thermo_20c5943161.jpg 146w," sizes="100vw" width="1500" height="1605"><h4>LIMITED OFFER WHILE STOCKS LAST</h4><h5>Everything ages. 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Equip Your Laboratory for Autumn at a Better Price

Breathomics, Asthma & GC×GC: PH Stefanuto on Fighting the “Proof‑of‑Concept” Trap

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Analytika is a Czech company that offers and produces certified reference materials (CRM) and (ultra)pure chemicals for quality control and quality assurance in laboratories, including accredited laboratories.

Our portfolio also includes pipettes and tips, digestors, PFA labware and other equipment for analytical laboratory and trace analysis.

ANALYTIKA

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.

Phenomenex

Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

Organomation

Separation Science

Agilent Technologies

Thermo Fisher Scientific

Restek Corporation

SelectScience

Shimadzu Corporation

On the surface this would appear to be a simple separation; however, there are several challenges related to this analysis. We will discuss typical techniques utilized for resolving and detecting permanent gases including CO2 and Hydrogen. Other topics will include cryogenic techniques, column isolation, and the use of the “Select Permanent Gas column”.<blockquote>Speaker: Mark Sinnott&nbsp;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 Webinar Series

The Hidden Challenges of Permanent Gas Analysis and How to Solve Them

Master permanent gas analysis in GC. Explore solutions for separating CO2 and hydrogen, including cryogenic methods and column isolation techniques

Overcoming Challenges in Permanent Gas GC Analysis

We probably have all experienced this at some point when performing gas chromatography and our peak shape begins to appear a bit different. &nbsp;In this webinar, we will discuss some of the most common chromatographic issues that you experience with Gas Chromatography and take a logical approach to finding the root cause and correcting the problem. Often the best way to approach troubleshooting is to also consider what ‘cannot’ cause an issue so that precious time is not spent addressing something that cannot cause the issue. This webinar will arm you with some simple tools, and a different way to look at troubleshooting, should a problem arise.<blockquote>Speaker: Alex Ucci&nbsp;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>

Essential Techniques for Gas Chromatography Troubleshooting

Learn essential GC troubleshooting techniques with Agilent. Discover a logical, time-saving root-cause analysis approach to fix poor peak shapes

Essential Techniques for GC Troubleshooting

This presentation will cover products from Agilent that make GC connections more robust by utilizing new technologies that make connections easier, leak free and more inert for any application.Topics covered include: Self Tightening Stainless Column Nuts and ferrules, Press Fits, UltiMetal Plus and Stainless Steel Capillary Tubing, Ferrule Pre-swaging installation tool and MS interface installation tool, among others.<blockquote>Speaker: Mark Sinnott (Technical Support Engineer, Consumables and Supplies Division, Agilent Technologies)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 - GC Webinar Series

From Inlet to Detector: Building Better Connections in GC and GC/MS Workflows

Build better GC and GC/MS connections with Agilent. Explore self-tightening column nuts, pre-swaging tools, and inert capillaries to eliminate leaks

Building Better Connections in GC and GC/MS Workflows

Keeping your GC system running smoothly isn’t just about good method development; it’s also about being prepared. In this webinar, we’ll walk through the essential consumables every lab should keep on hand to avoid unnecessary downtime. &nbsp;From gas traps and syringes to columns and detector supplies, we will discuss what supplies to stock and how this can help save valuable time.If you are about to purchase an instrument, we will also discuss critical items you’ll need to have on hand to ensure the installation is completed smoothly.Whether you’re new to GC or looking to optimize your workflow, this webinar will help ensure your system and your lab team stay up and running.<blockquote>Speaker: Ryan Mayfield (Field Service Engineer, Agilent Technologies)Ryan Mayfield has over 11 years of experience as a Field Service Engineer supporting GC and GCMS systems. &nbsp;He also delivers on-site application consulting for customers across a wide range of industries, including environmental, biotech, and petrochemical fields. &nbsp;He has a BS and MS in Food Science from UC Davis.Additional Speaker: Alex Ucci (Application Engineer, Agilent Technologies)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>

Stocked for Success: Essential GC Supplies That Keep You Running

Stay prepared with essential GC supplies. Explore critical consumables, gas traps, and detector supplies needed to prevent downtime and ease installation

Essential GC Supplies to Keep Your System Up and Running

This webinar introduces the fundamental components of a gas chromatograph and explains the role of columns and stationary phase selectivity in compound separation. Different injection techniques, compound types, and factors influencing chromatographic performance will be discussed. In addition, the webinar covers the theoretical background of method optimization and efficient GC separation.<h4>Key Learnings:</h4><ul><li>Understanding GC fundamentals improves method development and troubleshooting.</li><li>Stationary phase selectivity and injection technique strongly influence separation performance.</li><li>Optimization strategies help achieve more efficient and reliable GC separations</li></ul>

Basics. Principles of GC

This webinar introduces the fundamental components of a gas chromatograph and explains the role of columns and stationary phase selectivity.

As laboratories generate increasing volumes of data, software has become a critical driver of productivity, compliance, and insight in GC/GC-MS analysis. Join us for this GC/GC-MS Power Hour to explore how modern software solutions can simplify complex workflows, automate routine tasks, and improve confidence in your analytical results.Through demonstrations and expert guidance, you'll see how Thermo Scientific Chromeleon™ Chromatography Data System (CDS) streamlines method development, data processing, and system monitoring. Using a dioxin eWorkflow as a practical example, we'll demonstrate how to quickly implement isotopic dilution quantitation methods, optimize full scan and TSIM workflows, and configure calibration, retention time alignment, and System Suitability Testing (SST) to support EPA requirements while minimizing sample consumption.You'll also discover how to automate responses to predefined performance thresholds and learn practical Chromeleon CDS tips and tricks to help improve efficiency in your daily laboratory operations.<h4>Who should attend?</h4><ul><li>Laboratory managers</li><li>GC/GC-MS analysts and scientists</li><li>QA/QC professionals</li><li>Data analysts</li><li>Laboratory IT and informatics specialists</li></ul><h4>What you'll learn</h4><ul><li>Configure isotopic dilution quantitation workflows from acquisition through data processing</li><li>Build and optimize full scan and TSIM methods using a practical eWorkflow example</li><li>Apply calibration strategies, retention time alignment, and System Suitability Testing (SST) best practices</li><li>Automate instrument responses based on predefined performance criteria</li><li>Improve productivity with expert Chromeleon CDS tips, best practices, and workflow automation</li></ul><blockquote>Speaker:&nbsp;Dr. Nicholas Warner (Product Applications Specialist GC-MS, Thermo Fisher Scientific)Nicholas is a product specialist with a strong scientific background in GC and GC-MS applications. Originally from Canada, he has worked as an environmental researcher for 14 years within Norway before moving to join the Thermo Fisher Scientific team in Bremen, Germany in 2021. With a background in Environmental/Analytical chemistry, he is a specialist in the analysis of emerging harmful substances in the environment using gas chromatography mass spectrometry and high-resolution mass spectrometry.</blockquote>

Thermo Fisher Scientific: GC-GCMS Power hour series

Advanced software tips for GC and GC-MS analysis

Optimize GC and GC-MS workflows with Chromeleon CDS. Learn isotopic dilution, eWorkflow automation, TSIM methods, and EPA-compliant dioxin analysis

Advanced Chromeleon CDS Tips for GC & GC-MS Analysis

In GC, helium is predominantly used as the carrier gas. However, its high and increasing cost, combined with concerns over supply security, is prompting many laboratories to consider alternatives. Nitrogen and hydrogen can also be used as carrier gases, offering the advantages of lower cost and more secure availability, with the potential to be generated in the laboratory.These presentations will explore the different options available, the key considerations when switching from helium to nitrogen or hydrogen, and the common pitfalls or issues that might arise.Application data will demonstrate method translation, column scaling, and performance across demanding food and environmental contaminant analyses.<h5>Presentation 1: Using a Different Carrier Gas in GC and GC/MS</h5><ul><li>Jaap de Zeeuw, Global Technical Expert, CreaVisions</li></ul>This presentation will discuss several options to choose from and what the implications are when moving from helium to nitrogen or to hydrogen.<h5>Presentation 2: Carrier Gas Conundrum: Smart Solutions for Helium Alternatives</h5><ul><li>Mark Sinnott, Application Engineer, Agilent</li></ul>In this talk we will take out some of the guesswork associated with making the important decision of whether to switch from helium to other alternatives, such as hydrogen or nitrogen, and help you decide if the switch is right for you.<h5>Presentation 3: Driving Sensitivity and Sustainability in GC-MS with Atmospheric Pressure Ionization and Nitrogen</h5><ul><li>Frank L. Dorman, Ph.D., FRSC, Resident Scholar, Department of Chemistry, Dartmouth College</li></ul>This presentation examines how atmospheric pressure gas chromatography (APGC) enables nitrogen to be used as a practical alternative to helium while maintaining sensitivity and separation performance.<h5>Presentation 4: 7 Steps to Switching your GC Gas Supply from Helium to Hydrogen</h5><ul><li>Ed Connor, Product Manger, PEAK Scientific</li></ul>With helium shortages becoming increasingly common and several regulated methods now permitting the use of hydrogen as a carrier gas, join Dr Ed Connor as he discusses the necessary steps to consider when switching your GC carrier gas.<h4>By attending this webinar you will be able to:</h4><ul><li>Evaluate which carrier gas is most appropriate for a given GC or GC-MS application, considering instrument configuration, analytical requirements, and method performance.</li><li>Understand the practical considerations when transitioning from helium to hydrogen or nitrogen, including implications for chromatography, method translation, and routine analysis.</li><li>Recognise the specific challenges and considerations associated with using hydrogen carrier gas with mass spectrometers, including the use of a Hydro Inert Source.</li><li>Understand how atmospheric-pressure gas chromatography (APGC) differs from conventional electron ionisation (EI) and how APGC can deliver high sensitivity in GC-MS/MS workflows.</li></ul><h5>What you need to know:</h5><ul><li>Date: 16 September, 2026</li><li>Start time: 7 am PDT (Los Angeles) / 9 am CDT (Chicago) / 10 am EDT (New York) &nbsp;/ 3 pm BST &nbsp;(London) / 4 pm CEST (Paris/Berlin)</li><li>Duration: Approximately 2 hours</li></ul><blockquote>Presenter: Jaap de Zeeuw (Global Technical Expert, CreaVisions)Jaap is a world-renowned chromatographer with over 40 years of experience, including 15 years with Restek and 27 years with Varian/Chrompack prior to joining Restek. Throughout his career, Jaap has focused on the chromatographic challenges of industrial analysis. For his 1979 graduation from The Institute for Higher Education, where he specialized in chemistry, Jaap authored a paper titled "The Challenge of Coating Flexible Fused Silica Capillary Columns" and has since distinguished himself as an authority on the subject. Jaap has been directly involved with the creation of numerous chemically bonded columns, including the first bonded PEG column and the stabilized PLOT columns widely used in the petrochemical arena. He has also helped develop new techniques, such as fast GC-MS using vacuum GC technology (low-pressure GC or LPGC). Over his innovative career, he has filed several patents for his work. Based out of the Netherlands, Jaap is extensively published and regularly travels internationally to share his knowledge. After retiring from Restek, Jaap founded CreaVisions, where he works as a GC Consultant and teaches master classes on key GC topics as well as on creativity in science.</blockquote><blockquote>Presenter: Mark Sinnott (Application Engineer, Agilent)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 35 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. &nbsp;&nbsp;</blockquote><blockquote>Presenter: Frank L. Dorman (Resident Scholar, Department of Chemistry, Dartmouth College)Frank Dorman, PhD, FRSC, is a resident scholar in Dartmouth College's Chemistry Department, where he teaches analytical chemistry. At Waters, he oversaw the research-focused environmental market, external collaborations, and interfaces with R&amp;D for product development. Previously, he was Associate Professor of Biochemistry and Molecular Biology at Penn State University. His research interests span gas and liquid chromatography, instrumentation and column development, mass spectrometry, and atomic spectroscopy for trace analysis in complex matrices.</blockquote><blockquote>Presenter: Ed Connor (Product Manager, PEAK Scientific)Dr. Ed Connor joined PEAK in 2013 as a gas chromatography (GC) product specialist before moving on 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 doctor of science degree at ETH Zurich in 2007 using GC-Mass Spectrometry (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 volatiles analysis using a variety of volatile collection methods, GC-MS and GC-Flame Ionization Detection.</blockquote>

Separation Science: Beyond Helium - Alternative Carrier Gases for GC and GC-MS

Beyond Helium: Alternative Carrier Gases for GC and GC-MS

Explore helium alternatives for GC and GC-MS. Learn method translation to hydrogen and nitrogen, APGC technology, and steps for gas supply transition

Helium Alternatives for GC & GC-MS Analysis

Helium supply challenges and rising operational costs are leading more laboratories to explore hydrogen as an alternative carrier gas for gas chromatography. Making the switch successfully, however, depends on understanding how hydrogen affects methods, safety, instrument compatibility, and day-to-day laboratory practice.In this SelectScience webinar, Dr. Ed Connor, Product Manager at PEAK Scientific, and Tony Taylor, Technical Director at Crawford Scientific, will share practical guidance for transitioning from helium to hydrogen with confidence. Drawing on expertise in GC, GC-MS, chromatography education, and method development, the speakers will address common concerns around hydrogen carrier gas and explain how on-demand hydrogen generation can support more resilient and cost-effective GC workflows.Certificate of attendance If you attend the live webinar, you will automatically receive a certificate of attendance, including a learning outcomes summary, for continuing education purposes.If you view the on-demand webinar, you can request a certificate of attendance by emailing editor@selectscience.net.<h5>Webinar details</h5><ul><li>Cost: Free to attend</li><li>Location: Online</li><li>Duration: 60 minutes</li></ul>Registration is required to secure your place. If you register but can’t attend live, you will receive a link to the on‑demand recording once it becomes available.<h5>Who should attend?</h5>This event is perfect for individuals working in:<ul><li>Analytical science</li><li>GC and GC-MS</li><li>Method development</li><li>Quality control</li><li>Environmental testing</li><li>Pharmaceutical laboratories</li><li>Food &amp; beverage testing laboratories</li><li>Petrochemical laboratories</li><li>CROs</li></ul><h5>What will this webinar cover?</h5><ul><li>Why laboratories are increasingly transitioning from helium to hydrogen.</li><li>Practical considerations for converting existing GC methods safely and efficiently.</li><li>How hydrogen generators can improve laboratory productivity, sustainability, and operational resilience.</li><li>Best practices for planning and implementing a successful hydrogen transition.</li></ul><blockquote>Presenter: Ed Connor (Product Manager, PEAK Scientific)Dr. Ed Connor has been with Peak Scientific since 2013, initially working as an application specialist before joining the product management team in 2017. He has a background in research where he focused on GC &amp; GC-MS analysis of plant volatiles.&nbsp;</blockquote><blockquote>Presenter: Tony Taylor BSc. FRSC. CChem. Cert. Ed. (Technical Director, Crawford Scientific Ltd)Tony Taylor is Technical Director at Crawford Scientific and founder of CHROMacademy, the world’s largest chromatography and mass spectrometry e-learning platform. With almost 40 years’ experience in analytical science, he specializes in chromatography education, method development, and technical strategy. His current work includes codifying HPLC stationary-phase selectivity to support more rational column and method selection.He also has a strong interest in analyte characterization using LC–MS and GC–MS, translating complex analytical science into practical tools, training, and solutions for laboratory scientists.</blockquote><blockquote>Moderator: Todd Beanlands (Science Editor, SelectScience)</blockquote>

SelectScience: Future-proof your GC lab by switching from helium to hydrogen

Future-proof your GC lab by switching from helium to hydrogen

Learn how to safely transition your GC and GC-MS workflows from helium to hydrogen. Discover method conversion strategies and on-demand gas generation

Switching GC Carrier Gas from Helium to Hydrogen

In GC, you can choose from a wide variety of liners, which can make selection feel overwhelming. Fortunately, a few basic criteria can guide you to the best liner for your application. Liner selection depends first on the injection technique used and whether the sample is a liquid or a gas. Additionally, certain sample matrices and/or components can be challenging to evaporate and transfer, requiring special attention when selecting the optimal liner.<h5>Key Learning Objectives:</h5><ul><li>Understand how injection technique (e.g., split, splitless, on-column) and sample type (liquid vs. gas) influence liner selection.</li><li>Identify the basic selection criteria that narrow down the best liner for a given application.</li><li>Recognize challenging sample matrices and components that require special liner considerations.</li></ul>

Restek Corporation: Liner selection and injection techniques in GC

Liner selection and injection techniques in GC

Master GC liner selection and injection techniques. Learn how to optimize split, splitless, and on-column workflows for complex sample matrices

Optimizing GC Liner Selection and Injection Techniques

<div><div container-id="cq-colctrl-lt0" comp-id="A1"><div>Every meal we eat connects back to the land, yet agriculture remains one of the largest humanmade sources of CH₄ and N₂O—greenhouse gases far more potent than CO₂—with rice paddies and livestock among the biggest contributors. As building a sustainable food supply becomes increasingly vital, reducing these emissions starts with getting clear, reliable measurements from both the air and the soil.In this webinar, join our experts as they share practical testing methods to support net-zero agriculture. You will learn how to measure CH₄, CO₂, and N₂O all in a single run using the Nexis™ GC-2030 Greenhouse Gas Analyzer across soil chambers, animal digestion, and manure storage samples.Our speakers will also guide you through essential soil testing workflows: how to assess soil organic carbon and total nitrogen, track the key nutrients ( NO₃⁻, NO₂⁻, NH₄⁺ and SO₄²⁻ species ) driving N₂O emissions, and profile soil health for both essential nutrients and toxic elements.&nbsp;Register today to discover how analytical testing helps secure the future of our sustainable food supply!<h4>Learning Objectives</h4><ul><li>Select the right GC setup for simultaneous determination of CH₄, CO₂ and N₂O across various agricultural sample types, while achieving good sensitivity and fast run times.</li><li>Understand essential soil testing workflows from assessing soil organic carbon and total nitrogen to tracking key nutrients and profiling soil health.</li><li>Produce reliable, audit-ready GHG data with clear quality controls for future actionable.</li></ul><blockquote>Presenter: Peter Puah Perng Yang (Market Specialist Chemical, Shimadzu Asia Pacific, Pte Ltd)Presenter:&nbsp;Goh wan Yu Elton (Market Specialist, Food &amp; Environmental, Shimadzu Asia Pacific, Pte Ltd)</blockquote></div></div></div>

Shimadzu: Building A Sustainable Agriculture: Advanced Testing For Soil & Gas Emissions

Building A Sustainable Agriculture: Advanced Testing For Soil & Gas Emissions

Measure agricultural greenhouse gases with the Shimadzu Nexis GC-2030. Discover GC workflows for simultaneous CH4, CO2, and N2O soil testing

GCMS webinars focusing on GC - page 1