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Mon, 11 Sep 2000 17:56:28 +0200

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Stable Isotope Geochemistry <[log in to unmask]>

Subject:

Proper GC-MS for stable isotopes?

From:

Lars Löfgren <[log in to unmask]>

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Stable Isotope Geochemistry <[log in to unmask]>

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Dear listmember,
Plan to buy a GCMS in addition to my GC-C-IRMS. What are the important
parameters to look for?

Ion Trap vs Quadropole vs Magnets?
MS vs MSMS?
EI vs CI?

I am used to the HP5972 MSD EI. Will it do the job?

Will be used when GCCIRMS is not needed, for low concentrations when GCCIRMS
can not be used and for MIDA as well as for standard GCMS analysis of
endogenous componds.

Lars Löfgren
PhD

phone +46(0)31 7762381
fax +46(0)31 7763711
e-mail  [log in to unmask]


AstraZeneca R&D Molndal
DMPK & Bioanalytical Chemistry
431 83 Mölndal
SWEDEN

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