We are starting to use a Elementar PYRO for 18O analysis of organic
material. The system came with a graphite ash finger that is an open
ended tube, the bottom of which only has a lip on it, but otherwise is
open. There was nothing in the manual on this tube and we used this for
the first 30 standards with excellent results. However cooling the
system and taking the ash finger out did not retrieve any silver plug
from the capsules.
I am therefore concerned that the ash finger is not trapping the silver
and the silver is ending up in the glassy carbon tube. Since this is so
expensive I don't want to proceed until I know how the ash finger should
be treated. Should there be something in the bottom for example, like
one of the glassy carbon pads?
Any advice would be appreciated.
Thanks in advance, Paul Brooks.
Mr. Paul D. Brooks, Spectroscopist,
Dept. Integrative Biology MC3140
1005 Valley Live Sceince Building,
UC Berkeley, CA 94720-3140.
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