Hi,
a number of years ago, during the early stages of high temperature
pyrolysis developments at Finnigan I ran NBS30 at the 1-5-milligram
level and got astonishing results. I do not recall the exact numbers but
I had two distinct cluster values. My conclusion at the time was that
the material was not homogeneous at the single grain level and I
discontinued using it for the purpose. Has anyone experienced something
similar?
Willi
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Willi A. Brand, Stable Isotope Laboratory [log in to unmask]
Max-Planck-Institute for Biogeochemistry
Carl-Zeiss-Promenade 10, 07745 Jena, Germany Tel +49-3641-643718
P.O.Box 100164, 07701 Jena, Germany Fax: +49-3641-643710
http://www.bgc-jena.mpg.de/pages/public/Iso+Gas-Lab/BGC_Gaslab.htmlhttp://www.bgc-jena.mpg.de/pages/public/Iso+Gas-Lab/BGC_Isolab.html
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