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The CHROMacademy Essential Guide Webcast:
Effective GC Troubleshooting

Thursday 15th February 2018,
11:00am EST/ 8:00am PST/ 4:00pm GMT/ 5:00pm CET

 

 

Troubleshooting is an essential skill for all GC users. By looking at the top 5 problems submitted to the CHROMacademy troubleshooter we will provide you with the fundamentals of troubleshooting which can be applied to any problem you encounter.

Presented by

John V. Hinshaw (Senior Scientist, Serveron Corporation)
and Tony Taylor (Technical Director, Crawford Scientific)

Topics Covered

Essential GC troubleshooting strategies

  • Discuss common sources of the top 5 GC problems
    • Sample peak tailing
    • Poor peak area reproducibility
    • Broad peaks (loss of efficiency)
    • Double/split peaks
    • Sample peak fronting
  • Outline strategies to confirm and isolate the problem
  • Explain how to solve the problem
  • Provide knowledge on how to avoid the problem in the future

Presenter Information »

 
 

Effective GC Troubleshooting.

This month’s webcast provided you with troubleshooting strategies which can be applied to any problem.  The CHROMacademy material provided in this month’s tutorial will give you further insight into how to effectively troubleshoot some of the most common problems encountered in GC.
Our Quick guides, CHROMacademy course content, and archived webcasts and tutorials will allow you to become a knowledgeable troubleshooter.

Watch the webcast

Quick Guides


5 Simple Pictures Which Reveal Problems With Your GC Analysis - And How to Fix Them!

A picture paints a thousand words. The art of GC troubleshooting often lies in being able to recognize a problem from the evidence presented in the chromatogram or baseline appearance. In this short series of articles, we present simple GC pictures which show you how to recognize the issues, deal with the causes, and prevent them from happening again.

5 Simple Pictures Which Reveal Problems With Your GC Analysis »

 

5 More Pictures Which Reveal Problems With Your GC Analysis - And How to Fix Them!

A picture paints a thousand words. The art of GC troubleshooting often lies in being able to recognize a problem from the evidence presented in the chromatogram or baseline appearance. In this short series of two articles, we present 10 simple GC pictures which show you how to recognize the issues, deal with the causes, and prevent them from happening again. Here we present another five pictures.

5 More Pictures Which Reveal Problems With Your GC Analysis »

 

Practical GC Troubleshooting - Reduced Sensitivity

We apply a logical troubleshooting strategy to the problem of reduced sensitivity in GC. This troubleshooting strategy can be applied to any problem you may be faced with.

Practical GC Troubleshooting - Reduced Sensitivity »

 

Practical GC Troubleshooting - Peak Tailing

In this video, we solve a GC peak tailing problem submitted to our Ask the Expert service by a CHROMacademy member. This video shows how to use the interactive GC Troubleshooter to identify potential causes for the problem. Potential causes, how they might affect our chromatography, and what to do to avoid them happening again will be discussed.

Practical GC Troubleshooting - Peak Tailing »

 
GC Troubleshooting in 20 Pictures - Part I

In this short series of two webcasts, we present 20 real life GC chromatograms and show you how to recognize the issues, deal with the causes and preventing them from happening again.

GC Troubleshooting in 20 Pictures - Part I »

 
GC Troubleshooting in 20 Pictures - Part II

Real life chromatograms and baselines will be used to illustrate key issues with Gas Chromatography including:

  • Consequences of impure carrier and detector gases
  • Improperly designed Sample Introduction methods
  • Poorly maintained sample inlets
  • Badly calculated sample loading
  • Changes in separation selectivity
  • Dealing with difficult compounds
  • Poorly installed columns
  • Insidious detector issues

Of course we will also let you know how to fix these problems or better still, avoid them in the first place.

GC Troubleshooting in 20 Pictures - Part II »

 
Troubleshooting GC Separations - Retention Time, Efficiency, and Peak Shape Issues

Practical troubleshooting tips for GC separations, with special emphasis on retention time variability, loss of efficiency and poor peak shape. This webcast includes a wealth of practical information on GC separation issues and all our real world problems are related to both separation chemistry and hardware issues. We consider the common problems and highlight causes and remedial actions in a very practically relevant way. A must see for everyone working with GC instruments.

Troubleshooting GC Separations - Retention Time, Efficiency, and Peak Shape Issues »

 
Troubleshooting GC Separations - Selectivity, Resolutions, and Baseline Issues

Practical troubleshooting tips for GC separations, with special emphasis on selectivity changes, loss of resolution and baseline problems.  This webcast includes a wealth of practical information on GC separation issues and all our real world problems are related to both separation chemistry and hardware issues.   We consider the common problems and highlight causes and remedial actions in a very practically relevant way.  A must see for everyone working with GC instruments.

Troubleshooting GC Separations - Selectivity, Resolutions, and Baseline Issues »

 
 
 
 
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John V. Hinshaw
Senior Scientist, Serveron Corporation

John is the GC Department Dean at CHROMacademy. He has been active in the field of chromatography for more than thirty years primarily in gas chromatography engineering and applications.

He is currently Senior Scientist at Serveron Corporation where he develops on-line instrumentation.

John is the longtime editor of the "GC Connections" column in LC/GC Magazine, and he actively participates in ACS, ASTM International, IEEE, IUPAC, USP, and CIGRÉ.


Tony Taylor
Technical Director, Crawford Scientific

Tony comes from a pharmaceutical background and has many years’ research and development experience in small molecule analysis and bio-analysis using LC, GC and hyphenated MS techniques.

He is actively involved in method development within the analytical services laboratory at Hall Analytical – which supplies contract research in Chromatography and Mass Spectrometry. He continues to research in novel separation technologies, chromatographic method development and structural characterisation, especially in the areas of Extractable and Leachable analysis and Bio-Chromatography.

Tony is the Technical Director of CHROMacademy and has spent the past 17 years as a trainer and developing on-line education materials in analytical chemistry techniques.