Identification of an extended series of tricyclic terpanes in petroleum |
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Authors: | JMichael Moldowan Wolfgang K Seifert Emilio J Gallegos |
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Institution: | Chevron Oil Field Research Company, P.O. Box 1627, Richmond, California 94804 USA;Chevron Research Company, 576 Standard Avenue, Richmond, California 94804 USA |
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Abstract: | A series of tricyclic terpanes from C19 to C45 has been identified in petroleum by gas chromatographic mass spectroscopic (GCMS) analysis. This discovery extends the previously known homologous series reported from C19 to C30. A method of preparation of a tricyclic terpane concentrate is described which facilitates tricyclic terpane analysis by the GCMS m/z 191 fragment. Metastable scanning GCMS is described as an additional method for characterization of the tricyclic terpanes. |
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