Organic chemical analysis on a microscopic scale using two-step laser desorption/laser ionization mass spectrometry

Details Organic chemical analysis on a microscopic scale using two-step laser desorption/laser ionization mass spectrometry Organic chemical analysis on a microscopic scale using two-step laser desorption/laser ionization mass spectrometry

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ssrv...56..191k&link_type=abstract

(Analysis of samples from solar system bodies with emphasis on existing and emerging technologies; Proceedings of the Internatio

Computer Science

Emerging Technologies

3

Allende Meteorite, Chemical Analysis, Hydrocarbons, Laser Spectroscopy, Mass Spectroscopy, Chondrule, Interplanetary Dust, Laser Beams, Meteorites, Allende, Cv3 Chondrites, Chondrites, C Chondrites, Equipment, Stony Meteorites, Organic Material, Chemistry, Laser Methods, Techniques, Hydrocarbons, Spectroscopy, Ims, Samples, Meteorite, Laboratory Studies, Concentration, Matrix, Diagrams, Procedure, Description, Ionization

Scientific paper

The distribution of PAHs in the Allende meteorite has been measured using two-step laser desorption and laser multiphoton-ionization mass spectrometry. This method enables in situ analysis (with a spatial resolution of 1 mm or better) of selected organic molecules. Results show that PAH concentrations are locally high compared to the average concentration found by analysis of pulverized samples, and are found primarily in the fine-grained matrix; no PAHs were detected in the interiors of individual chondrules at the detection limit (about 0.05 ppm).

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