Suitable columns for gas analysis

Lesley Robertson l.a.robertson at stm.tudelft.nl
Mon Oct 16 10:04:49 EST 1995


"Shenaz Moola" <SHENAZ at civen.civil.wits.ac.za> wrote:
>We've recently purchased a gas chromatograph and want to place an 
>order for the columns. From the literature, there appears to be a 
>number of different types of columns all being used for the same 
>analyses. We've set up lysimeters containing household waste and 
>sewage sludge. The gases we want to check for are methane, carbon 
>dioxide, oxygen, nitrogen, nitrous oxide and hydrogen. Can anyone 
>suggest suitable columns for their detection.

You don't say what detector(s) you've got. I've used a thermal 
conductivity detector with a molecular seive (5 Angstroms, 60/80 mesh) 
column for N2 and O2, and an Electron Capture Detector with a Hayesep Q 
column (2 m long, 3.2 mm wide) for N2O. 
-- 
Dr. Lesley A. Robertson
Kluyver Laboratory for Biotechnology
Delft University of Technology, the Netherlands
L.A.Robertson at stm.tudelft.nl





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