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Science 25 March 1988:
Vol. 239. no. 4847, pp. 1523 - 1525
DOI: 10.1126/science.239.4847.1523
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Articles

Application of Two-Step Laser Mass Spectrometry to Cosmogeochemistry: Direct Analysis of Meteorites

JONG HOON HAHN 1, RENATO ZENOBI 1, JEFFREY L. BADA 2, and RICHARD N. ZARE 1

1 Department of Chemistry, Stanford University, Stanford, CA 94305.
2 Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093.

Polycyclic aromatic hydrocarbons in C1, C2, and C3 carbonaceous chondrites and in some ordinary chondrites have been directly analyzed by two-step laser desorption/ laser multiphoton ionization mass spectrometry, a selective and sensitive method requiring only milligram samples. At the ionization wavelength of 266 nanometers, parent ion peaks of polycyclic aromatic hydrocarbons dominate the mass spectra. Quantitative analysis is possible; as an example, the concentration of phenanthrene in the Murchison meteorite was determined to be 5.0 parts per million.

Submitted on October 19, 1987
Accepted on January 22, 1988


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
UV Irradiation of Polycyclic Aromatic Hydrocarbons in Ices: Production of Alcohols, Quinones, and Ethers.
M. P. Bernstein, S. A. Sandford, L. J. Allamandola, J. S. Gillette, S. J. Clemett, and R. N. Zare (1999)
Science 283, 1135-1138
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A Search for Endogenous Amino Acids in Martian Meteorite ALH84001.
J. L. Bada, D. P. Glavin, G. D. McDonald, and L. Becker (1998)
Science 279, 362-365
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Fullerenes in the 1.85-billion-year-old Sudbury impact structure.
L Becker, J. Bada, R. Winans, J. Hunt, T. Bunch, and B. French (1994)
Science 265, 642-645
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Identification of Complex Aromatic Molecules in Individual Interplanetary Dust Particles.
S. J. Clemett, S. J. Clemett, C. R. Maechling, R. N. Zare, P. D. Swan, and R. M. Walker (1993)
Science 262, 721-725
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Spatially Resolved Organic Analysis of the Allende Meteorite.
R. Zenobi, R. ZENOBI, J.-M. PHILIPPOZ, R. N. ZARE, and P. R. BUSECK (1989)
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