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Stable Isotope Geochemistry

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Sender: Stable Isotope Geochemistry <[log in to unmask]>
Subject: GC-TC furnace for Compound specific H
From: Marilyn Fogel <[log in to unmask]>
Date: Fri, 9 Jan 2009 11:09:43 -0500
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Reply-To: Stable Isotope Geochemistry <[log in to unmask]>
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Dear Isotopers,

We're turning on our high temperature GC pyrolysis furnace for the  
first time. I can't seem to find clear/straightforward instructions in  
either manual that I have access to at the moment. [Is the Pope  
Catholic?]

Can someone recommend the timing and rate and temperatures for this  
reactor furnace?

Also, one manual mentions preconditioning, meaning injecting a  
microliter of solvent in the column before actually analyzing samples.  
Does anyone know what this actually does? And, do any of you have a  
procedure in place for this?

Thanks for your help. We're proceeding and will keep you informed  
regardless.

Marilyn Fogel



Dr. Marilyn L. Fogel
Geophysical Laboratory
Carnegie Institution of Washington
5251 Broad Branch Rd., NW
Washington, DC 20015
Phone (202) 478-8981
Main office (202) 478-8900
FAX (202) 478-8901
Website: http://fogel.gl.ciw.edu/

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