Brian, We are currently analysing 13C, D/H, and 37Cl in
chlorinated solvents and their degradation products in groundwaters
via headspace or SPME.
I am sure if the concentrations are high enough we could do gas
samples.
Contrary to Wolfram's opinion - it does not seem to crap up the
system for at least 100 analysis.
We have confirmed reliability of GC-C-IRMS with pure phase
compounds run by EA-IRMS. These compounds were run as
mixtures and out of water samples.

Look in E,S & T for Hunkeler et al,  Slater et al, Poulson et al.

Bob : [log in to unmask]

On 12 Feb 01, at 11:15, Brian kirtland wrote:

Date sent:              Mon, 12 Feb 2001 11:15:09 -0500
Send reply to:          Stable Isotope Geochemistry <[log in to unmask]>
From:                   Brian kirtland <[log in to unmask]>
Subject:                GC-IRMS
To:                     [log in to unmask]

I am looking for a laboratory that will analyze soil gas containing
chlorinated hydrocarbons (trichloroethylene, carbon tetrachloride)
for 13C
using GC-IRMS.  Does anyone know of such a laboratory?  Thanks
in advance,

Brian Kirtland
University of South Carolina
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Robert J. Drimmie                  [log in to unmask]
Environmental Isotope Laboratory   Telephone: 519-888-4567
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University of Waterloo             Facsimile: 519-746-0183
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