Dear list members,

I have a question for those with experience on sampling the head space of 
liquid samples. I am reacting LiOBr with a urea solution to generate N2 
gas. The sample is analyzed with an Europa 20/20 IRMS attached to a Gilson 
autosampler. I am concerned with moisture (and LiOBr) creeping into the 
machine. The sample goes through a few valves and plumbing before reaching 
the water scrubber and I am afraid that with time it is going to cause some 
problems.
The option I see, is installing another water trap immediately after the 
autosampler. The trap could be a liquid N trap or another magnesium 
perchlorate scrubber. Any suggestions?

Thanks

Juan






Juan C. Marini D.V.M, M.Sc., Ph. D.
411 ASL
1207 Gregory dr
University of Illinois
Urbana, IL 61801

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Tel: 217 333 4679
fax: 217 333 8285