GC Archives - Chemetrix https://chemetrix.co.za/tag/gc/ Powerful Partnership, Inspiring Insights Mon, 10 Mar 2025 13:54:32 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.5 GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series https://chemetrix.co.za/gc-and-gc-ms-theory-maintenance-and-optimisation-webinar-series/ https://chemetrix.co.za/gc-and-gc-ms-theory-maintenance-and-optimisation-webinar-series/#respond Mon, 10 Mar 2025 16:00:38 +0000 https://chemetrix.co.za/?p=6792 Continue reading "GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series"]]> Ready to master your GC & GC/MS instruments?
Whether you’re just starting out with gas chromatography or looking to level up your troubleshooting skills, this expert-led webinar series from Chemetrix and Agilent is your ticket to the tools and techniques you need to succeed.

 

Designed for professionals and enthusiasts, this series will help you enhance your skills and deepen your understanding of GC and GC/MS analytical techniques. You will learn the theory of GC as well as the basics of hardware, including set-up, function, and key components.

 

GC, Theory and Basics

In the first of the GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series, you will learn the theory of GC as well as the basics of hardware including set-up, function and key components

Speakers

Mario Morales
Pre-Sales GC/ GC-MS Specialist
Agilent Technologies, Inc.

Laurent Pascaud
Product Specialist GC & GC/MS
Agilent

 

 

GC, Preventive Maintenance And Troubleshooting

During the second part of the GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series, we will present the main preventive maintenance operation as well as how to keep your instrument up and running to its maximal capacities.

Speakers

Logan Govender
Spectroscopy Support Manager
Chemetrix

Mario Morales
Pre-Sales GC/ GC-MS Specialist
Agilent Technologies, Inc.

Laurent Pascaud
Product Specialist GC & GC/MS
Agilent

 

 

Advanced Optimisation Techniques for GC Methods

During the third session of the GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series, we will present the basics of hardware including set-up, function and key components.

Speakers

Mario Morales
Pre-Sales GC/ GC-MS Specialist
Agilent Technologies, Inc.

Laurent Pascaud
Product Specialist GC & GC/MS
Agilent

 

 

GCMSD, Preventive Maintenance And Troubleshooting

During the fourth and final part of the GC and GC/MS: Theory, Maintenance, and Optimisation Webinar Series, we will present the main preventive maintenance operation as well as how to keep your instrument up and running to its maximal capacities.

Speakers

Stefan Toerien
Customer Engineer
Chemetrix

Nico Wolmarans
Application Chemist
Chemetrix

Mario Morales
Pre-Sales GC/ GC-MS Specialist
Agilent Technologies, Inc.

Laurent Pascaud
Product Specialist GC & GC/MS
Agilent

 

 

Register now >

 

 

]]> https://chemetrix.co.za/gc-and-gc-ms-theory-maintenance-and-optimisation-webinar-series/feed/ 0 Become a Better Chromatographer Webinar Series https://chemetrix.co.za/become-a-better-chromatographer-webinar-series/ https://chemetrix.co.za/become-a-better-chromatographer-webinar-series/#respond Tue, 05 Mar 2024 08:00:57 +0000 https://chemetrix.co.za/?p=5359 Continue reading "Become a Better Chromatographer Webinar Series"]]> Whether you are a seasoned GC veteran or a beginner, this GC Webinar series will help to make you a better chromatographer so you get the reproducible results you need to make your lab more productive.

 

 

Overwhelmed with too many GC column options? Let us help

There are many column choices for GC and GC/MS, but which one is right for your method? Choosing the correct column type is paramount in being successful with your analysis. Understanding the stationary phase chemistry and the role it plays in column selectivity, as well as the dimensions of the capillary column itself, will result in a more robust and efficient analysis. This talk will discuss how the various stationary phases influence selectivity, as well as how column dimensions affect peak behavior and resolution. Join us as we match you with the right column for your analysis!

Speaker

Mark Sinnott
Application Engineer
Agilent Technologies, Inc.

 

 

 

Analysis of Permanent Gases: More Challenging Than You Might Think

On the surface, this would appear to be a simple separation—however, there are several challenges related to the analysis of permanent gases. We will discuss typical techniques for resolving and detecting permanent gases, including carbon dioxide and hydrogen. Other topics will include cryogenic techniques, column isolation, and the use of the Agilent J&W Select Permanent Gases/CO2 GC column.

Speaker

Mark Sinnott
Application Engineer
Agilent Technologies, Inc.

 

 

Take the Trouble Out of Troubleshooting: Gas Chromatography

We probably have all experienced this at some point when performing gas chromatography—our peak shape begins to appear a bit different. 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 is not relevant to the symptoms. This webinar will arm you with simple tools, and a different way to look at troubleshooting, should a problem arise.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Agilent GC/MS Solutions for Cannabis and Hemp Testing

This presentation will introduce you to the Agilent flow path solutions for residual solvents, terpenes, and pesticide testing in cannabis and hemp. We will discuss how we have made it easier for you to get up and running quickly with e-Methods, application notes, and consumable kits.

Speaker

Simon Jones
GC Applications Engineer/Scientist
Agilent Technologies, Inc.

 

 

Keep your GC Column Alive: Tips and Tricks for Extending Column Lifetime

These are just some of the questions we receive frequently in technical support and will address in today’s webinar.  We will show you some tips and tricks on how to bring your column back to life as well as when it is time to get a new one.  We will also discuss some preventative measures you can take to keep your column healthy such as implementing sample preparation.

Speaker

Ryan Birney
Application Engineer
Agilent Technologies, Inc.

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Demystifying Valve Gas Chromatography: Understanding Complex Valve Configurations

Valve chromatography can be overwhelming to even the most experienced GC users.  Join us as we discuss the physical design of the valves, how the physical design relates to common valve diagrams, and common uses for different types of valves.  We will begin with simple valve configurations and understand how these simple concepts can create a complex solution.  We hope to have you leave with a basic understanding of valve chromatography.

Speaker

Kelly Beard
Application Scientist
Agilent Technologies, Inc.

 

 

Get Better Resolution for your New Year’s Resolution: GC Separation Troubleshooting

Whether it be eating healthier or exercising more, we all set goals for the New Year.  But are you also resolving to get better resolution this year with your GC columns?

Are you experiencing peak co-elution or would you simply like to obtain more resolution between your peaks?

Join us as we discuss methods and strategies for getting better resolution as your New Year’s resolution.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Indecisive About your Column Selection? Let Us Help You Choose the Correct GC Column

There are many column choices for GC and GC/MS but which one is right for your method?   Choosing the correct column type is paramount in being successful with your analysis. Understanding the stationary phase chemistry and the role it plays in column selectivity, as well as the dimensions of the capillary column itself, will result in a more robust and efficient analysis. This talk will discuss how the various stationary phases influence selectivity, as well as how column dimensions affect peak behavior and resolution. Join us as we match YOU with the right column for your analysis!

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Agilent 8890 Features to Improve Lab Productivity

Have you been wondering how the new features in the 8890 can help your lab? Do you know the new features the 8890 has to offer? The 8890 has integrated tools that can help your lab with productivity. The new tools can also help your lab maintain, troubleshoot, and monitor your GC’s usage. Join this webinar to learn more about these features and find out how you can implement them in your lab.

Speaker

Jamie Wetuski
GC Training Specialist Technical Marketing
Agilent Technologies, Inc.

 

 

Understanding GC- What is Really Going on Inside the Box?

In this presentation, we will leave you with an understanding of what Gas Chromatography really means, and what is really happening from injection to detection. We will explain what resolution is, and how to improve it as well as the influence that each component of the system has on your results in general.

Speaker

Mark Sinnott
Application Engineer
Agilent Technologies, Inc.

 

 

Making Better Connections in GC and GC/MS Systems

This presentation will cover products from Agilent that make GC connections more robust by utilizing new technologies that makes 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.

Speaker

Mark Sinnott
Application Engineer
Agilent Technologies, Inc.

 

 

Tips and Tricks: Best Practices for Column Installation and Care of GC Columns

The installation and care of your GC column is of the utmost importance. Whether you are new to the practice of gas chromatography, or would like a refresher, join us as we discuss proper column installation and handling for all Agilent GCs, including the Agilent Intuvo 9000 GC. We will also address the common modes of column degradation and some of the misconceptions that people have concerning column degradation. Lastly, we will discuss ways that you can protect and maintain your column performance and extend its lifetime while minimizing instrument downtime.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

Ryan Birney
Application Engineer
Agilent Technologies, Inc.

 

 

Techniques for Avoiding Unexpected Problems in LC and GC Analysis

Chromatography can be complicated. Sample preparation is important, but not always used correctly. This webinar will cover some unexpected problems and solutions to generate better data. We will cover topics including peak shape, ghost peaks, tailing peaks, split peaks, missing peaks, variable retention times, high backpressure, instrument contamination, and ion suppression. We will go over strategies for cleaning up your sample, protecting your column and instrument from sample matrix contamination, and getting reliable, reproducible, and accurate results from your chromatography.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

How to Go Fast and Make Your Carrier Gas Last

In today’s ever-changing laboratory environment, sample throughput and security of supply are paramount in maintaining productivity. With the recent limited availability and cost increase of helium, many labs are looking at ways to conserve and convert. In this webinar, we will demonstrate how simple column and consumables choices can improve speed of analysis, while also minimizing the use of carrier gas. We will also illustrate how these same consumables will provide the flexibility needed to simplify conversion to hydrogen carrier gas, if needed. Finally, we will provide some simple, under-utilized tips on how to conserve your current gas use. Please join us to hear how you can implement fast GC methods that will also reduce the impact of carrier gas supply disruptions.

Speaker

Ashlee Gerardi
Product Marketing
Agilent Technologies, Inc.

 

 

How to Keep a Good Thing Going: Preventive and Routine Maintenance for Your GC System

There are many consumables in the GC flow path, and sometimes it can be tricky to know when it is time for a replacement. Join us as we review the common consumables in the GC flow path and point out common signs or symptoms that indicate it may be time to do some maintenance.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Unlocking Pesticide Analysis Excellence: Proven Tactics for Optimal Results with Helium and Hydrogen

Delve into the GC/TQ pesticide analysis workflow, from sample preparation to robust results over hundreds of injections. We will uncover the expert strategies for enhancing analytical performance in the analysis of pesticides in challenging food matrices with the 7000E GC/TQ and the 7010C GC/TQ. From EMR pass-through cleanup to the benefits of a midcolumn backflush, GC injection optimization, column considerations with helium and hydrogen, GC method translation, retention time locking, and the consumables designed to simplify the setup, we will reveal the keys to success with both helium and hydrogen carrier gases. Elevate your analysis with tips and tricks that bring out the best in your results.

Speaker

Anastasia A. Andrianova
GC/MS Application Scientist
Agilent Technologies, Inc.

 

 

Navigating Troubled Waters: A Deep Dive into Water Injections by GC

Injecting water into your GC may be convenient, especially if you are working with compounds that have limited solubility in organic solvents or with water samples. However, there are many potential problems with water, including injector and detector issues. Join us as we take a dive deep and explore water injections and not only how to perform them correctly, but also the many pointers to keep in mind when working with water.

Speaker

Mark Sinnott
Application Engineer
Agilent Technologies, Inc.

 

 

Don’t Get Carried Away by Carryover: Troubleshooting GC Chromatography

Have you ever seen analyte peaks show up in a blank, or extra peaks suddenly appear out of nowhere? It is likely that you have some carryover or contamination in your system. Contamination that creates ghost and carryover peaks can be introduced at different points, including sample preparation, introduction, and separation. The additional peaks can cause false positive identifications and/or inaccurate quantitative results.

Speaker

Alex Ucci
Application Engineer
Agilent Technologies, Inc.

 

 

Prevent, Protect, Purify: The Benefits of Gas Filtration

Impure gases can cause installation delays, premature instrument failure, and flawed results. Purification is one of the most important steps that you can take to optimize your system performance. Although you might purchase the highest-quality gas, purification still acts as a form of insurance in case a leak occurs. Join us as we cover options for gas purification and have a look at what gas contamination looks like so you can spot it in your chromatography.

Speaker

Ryan Birney
Application Engineer
Agilent Technologies, Inc.

 

 

Register now >

 

]]> https://chemetrix.co.za/become-a-better-chromatographer-webinar-series/feed/ 0 HydroInert for Use with Hydrogen Carrier Gas https://chemetrix.co.za/hydroinert-for-use-with-hydrogen-carrier-gas/ https://chemetrix.co.za/hydroinert-for-use-with-hydrogen-carrier-gas/#respond Tue, 06 Sep 2022 14:42:42 +0000 https://chemetrix.co.za/?p=4692 Continue reading "HydroInert for Use with Hydrogen Carrier Gas"]]> Recent concerns with the price and availability of helium have led laboratories to look for alternative carrier gases for their GC/MS and GC/MS/MS systems. For GC/MS, hydrogen is the best alternative to helium. Among the problems encountered when converting to hydrogen carrier gas in GC/MS is that hydrogen is not an inert gas and may cause chemical reactions in the mass spectrometer electron ionization (EI) source. This can lead to disturbed ion ratios in the mass spectrum, spectral infidelity, and peak tailing. Therefore, a novel EI source for GC/MS and GC/MS/MS was developed and optimized for use with hydrogen carrier gas.

To evaluate the novel EI source performance, several classes of compounds including SVOCs, VOCs, PAHs, PCBs, phthalates, and pesticides were analyzed with GC/MS and GC/MS/MS using hydrogen as the carrier gas. The results demonstrated:

  • Good spectral fidelity for compounds susceptible to hydrogenation in the source resulting in higher library match scores observed against the NIST spectral library when compared to the conventional EI source. This effect was especially pronounced for nitrobenzene and other nitro-compounds
  • Excellent chromatographic peak shape, especially for late-eluting PAHs with a fast analysis method that is known to amplify any chromatographic peak tailing
  • Good performance for the analysis of over 200 pesticides with both GC/MS and GC/MS/MS
  • Dramatically improved calibration performance for SVOCs
  • Excellent spectral matching and calibration performance for VOCs analyzed with headspace in drinking water
  • Demonstrated excellent sensitivity at the sub-ppb level for many analytes including PAHs and PCBs, exceeding that typically seen with hydrogen carrier gas with both GC/MS and GC/MS/MS
  • Stable system performance for over 5,000 injections of a heavy soil extract.

The novel EI source addresses one of the operational issues impacting the environmental laboratory industry with using hydrogen as the carrier gas.

 

Speaker

Anastasia A. Andrianova
GC/MS Application Scientist
Agilent Technologies, Inc.

 

Anastasia Andrianova is a GC/MS Applications Scientist in the Mass Spectrometry Division of Agilent Technologies, located in Wilmington, Delaware. She received a Ph.D. in analytical chemistry from the University of North Dakota (Grand Forks) in 2017 and a combined masters’ and bachelor’s degree in analytical chemistry from the Moscow State University (Moscow, Russia) in 2014. Anastasia has been at Agilent Technologies since 2018. She has authored or co-authored over 30 journal articles and application notes, as well as 1 patent in the field of analytical chemistry, focusing on chromatography and mass spectrometry. Anastasia is currently working in GC/MS applications in multiple areas with a focus on food and environmental analysis.

 

Register and watch on demand >

 

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