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Stable Isotope Geochemistry

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Subject:
From:
"Anthony M. Faiia" <[log in to unmask]>
Reply To:
Stable Isotope Geochemistry <[log in to unmask]>
Date:
Tue, 29 Mar 2005 17:47:10 EST
Content-Type:
text/plain
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Steve,

I would still suggest trying the procedure I just posted to ISOGEOCHEM. It works quite well. I just finished another reactor in 30 minutes. It comes out clean and unbroken.

How do you get so many injections per filling? Have you used a smaller particle size chromium?
Also, don't suppose you've come up with anyway of reducing the chromium for reuse?


Anthony Faiia
Dept of Earth Science
Dartmouth College
Hanover, NH



--- You wrote:
We carefully cut them in half with a slowly rotating diamond saw,
remove the spent Cr, clean them, and take them to a glassblower for
repair.  If you do several at a time, the cost for repair should be
low.  The repair is quite simple--the glass blower simply has to
chuck them up in the lathe and re-join the two halves.

They end up slightly shorter, but the high-temperature septa will
still seal them.  You can re-use a reactor 1-2 times this way, for a
total life of 2000-3000 injections per reactor.
--- end of quote ---

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