Temperature(Pre) -- Gas Chromatography Question

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SUMMARY

The forum discussion centers on the use of a Gas Chromatograph (GC) with a Thermal Conductivity Detector (TCD) for analyzing gases such as CO2, CO, H2, and short-chained hydrocarbons. The user seeks clarification on the "Temperature(pre)" setting specific to TCD analysis. Participants suggest consulting the Operator's manual and highlight the advantages of Flame Ionization Detectors (FID) over TCD, although the user is constrained to TCD due to existing setup limitations.

PREREQUISITES
  • Understanding of Gas Chromatography (GC) principles
  • Familiarity with Thermal Conductivity Detectors (TCD)
  • Knowledge of gas analysis techniques
  • Access to GC Operator's manuals
NEXT STEPS
  • Research the specific settings for Temperature(pre) in TCD analysis
  • Learn about the differences between TCD and Flame Ionization Detectors (FID)
  • Explore the Operator's manual for the specific GC model in use
  • Investigate best practices for analyzing gases like CO2 and H2 using GC
USEFUL FOR

This discussion is beneficial for analytical chemists, laboratory technicians, and anyone involved in gas analysis using Gas Chromatography, particularly those utilizing Thermal Conductivity Detectors.

rwooduk
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Does anyone here have any experience with GC? I am developing a method for analyses and I understand all the settings but there is one related to the TCD called Temperature(pre). Does anyone have any ideas?

Thanks for any suggestions!
 
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Do you have access to the Operator's manual? Maybe google around for the make and model of your GC. Sometimes you can find manuals online.
 
Why are you using a thermal conductivity detector? Flame ionization detectors are so much better. To be honest, I've never used TCD or electron capture, FID all the way, or mass spec. Is you analysis specific for TCD?
 
Kevin McHugh said:
Why are you using a thermal conductivity detector? Flame ionization detectors are so much better. To be honest, I've never used TCD or electron capture, FID all the way, or mass spec. Is you analysis specific for TCD?

Apologies for the late reply. Simply put we have limited experience using the GC and it is already set up for TCD analysis. I'll be using it for analysis of gases such as CO2, CO, H2 and short chained hydrocarbons.

^^ The manual mentions noting of the Temp(Pre) unfortunately.
 

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