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Science 15 August 1969:
Vol. 165. no. 3894, pp. 695 - 697
DOI: 10.1126/science.165.3894.695
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Articles

Acidic Components of Green River Shale Identified by a Gas Chromatography-Mass Spectrometry-Computer System

Robert C. Murphy 1, Milica V. Djuricic 1, Sanford P. Markey 1, and K. Biemann 1

1 Department of Chemistry, Massachusetts Institute of Technology, Cambridge 02139

A system consisting of a gas chromatograph coupled to a mass spectrometer and computer has been used to characterize the extractable acidic components of Green River shale. This system accumulates mass spectra at every point of the gas chromatogram in a permanent form which permits one to observe mass spectra of minor as well as major constituents. One minor component, whose identification was confirmed by synthesis, was 6,10,14-trimethyl-pentadecanoic acid.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)