Request for method (or system or advice)

[jfrankh]

Hi All!

I'm new to GC, so I don't know if the following is a ridiculous request or not. I apologize in advance if so. Anyway, my lab wants the capability to monitor headspace gases from soil, including CO2, CH4, N2, N2O, and H2 at a minimum. We have a some GCs with FID, ECD, and NPD detectors. We also have an EI GC/MS and some HPLCs (UV, PDA). My question is, does anyone know of a method to analyze all of these things using any of the detectors I've listed? If not, do you have a method using any other detector/column? If you'd like to contact me directly with a shameless sales pitch, feel free: jholt at uiuc dot edu. More importantly, if anybody's analyzing these chemicals I'd love to hear from them.

thanks in advance!

Jon

[JI2002]

None of your instrument is an option for the compounds listed. The only thing I can think of is GC-TCD with packed column.

[jfrankh]

That's what I feared. I am looking at some PLOT and FSOT capillary columns and hopefully will find something. With all the great capillary technology out there, it seems like a shame to work with packed columns. I'll reply if something works out.

[dcobice]

Hi, well if I undestand your request... may be for me its depends at waht limits of quantitation will be quantite these compounds.Sure with GC/Ms in a specific conditions its possible.
If you want, i send you a GC/Ms conditions via E-mail.
But anyway for me its possible to do this analysis.A long time ago I did it in an enviromental lab in UK and run suitable.

Regards!!!