I'm currently setting up GCxGC and developing methods for quantitative petroleum analysis using a Thermo Trace 1310 GC with an FID detector. Does anyone have suggestions regarding methods (column type, temperature settings, etc), or equipment?
Should I get a thermal or flow modulator (and from which company)? I'd like to avoid liquid nitrogen (for safety reasons) if possible.
Is a secondary/auxillary oven needed?
Helium is quite expensive, so have you found nitrogen to be a successful carrier gas?
What software have you found to be most useful?
You should have MS for this system and preferably ToF-MS.
The best performance comes from liq.N2 modulators.
N2 is not good carrier gas - in second column you have a high linear velocity (check van Deemter plots for each gas). You can try with H2.
The "safety reasons" are not a good primary criteria of choice.
If you know the "safety rules" it will be safe with each gas and modulator.
regards,
GB
Please look at the following below links which may help you in your analysis:
https://www.restek.com/Technical-Resources/Technical-Library/Petroleum-Petrochemical/petro_pin072011
https://chromspec.com/pdf/e/rk155.pdf
https://www.concawe.eu/wp-content/uploads/2016/05/Rpt_16-2.pdf
https://www.jeol.co.jp/en/applications/pdf/ms/ms_note_en006.pdf
Thanks
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