Microscopic organic analysis using two-step laser mass spectrometry: application to meteoritic acid residues

The development of a microanalytical instrument to analyze the organic constituents of particulates and inhomogeneous samples is examined. The method uses an infrared laser to volatilize constituent molecules intact and an ultraviolet laser to ionize desorbed molecules in a selective manner with lit...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 1992-03, Vol.64 (6), p.682-690
Main Authors: Kovalenko, Laurie J, Maechling, Claude R, Clemett, Simon J, Philippoz, Jean Michel, Zare, Richard N, Alexander, Conel M. O
Format: Article
Language:English
Subjects:
Chemistry
Infrared radiation
Lasers
Molecules
Scientific imaging
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Summary:The development of a microanalytical instrument to analyze the organic constituents of particulates and inhomogeneous samples is examined. The method uses an infrared laser to volatilize constituent molecules intact and an ultraviolet laser to ionize desorbed molecules in a selective manner with little or no fragmentation.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac00030a021