Temperature(Pre) -- Gas Chromatography Question

AI Thread Summary
The discussion centers around the use of a Gas Chromatograph (GC) with a Thermal Conductivity Detector (TCD) for analyzing gases like CO2, CO, H2, and short-chain hydrocarbons. The user seeks clarification on the "Temperature(pre)" setting related to the TCD, indicating limited experience with the GC. Suggestions include consulting the operator's manual or searching online for the specific make and model of the GC for guidance. There is a debate on the choice of detector, with some participants advocating for Flame Ionization Detectors (FID) over TCD, questioning the necessity of using TCD for the analysis. The user confirms that the setup is already configured for TCD analysis, highlighting the challenge of finding detailed information on the manual regarding the Temperature(pre) setting.
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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