The use of silicalite for rapid isolation of branched and cyclic alkane fractions of petroleum

In this note we describe a procedure using silicalite sorption for rapidly and conveniently isolating a branched and cyclic fraction of a petroleum suitable for analysis of saturated biomarker components by GC-MS. By examination of m/z 191, 217, 218 and 259 mass chromatograms of silicalite-included...

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Bibliographic Details
Published in:Organic geochemistry 1990, Vol.15 (5), p.499-501
Main Authors: West, Nigel, Alexander, Robert, Kagi, Robert I.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Hydrocarbons
molecular
petroleum
petroleum geochemistry
saturate fractions
Sedimentary rocks
silicalite
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Summary:In this note we describe a procedure using silicalite sorption for rapidly and conveniently isolating a branched and cyclic fraction of a petroleum suitable for analysis of saturated biomarker components by GC-MS. By examination of m/z 191, 217, 218 and 259 mass chromatograms of silicalite-included fractions, and comparison of 5 Å excluded fractions with silicalite-excluded fractions, we have rigorously established that this method is valid for analysis of sterane and hopane biomarker components of petroleum. The method makes possible a one-day turnaround for routine biomarker analysis.
ISSN:0146-6380
1873-5290
DOI:10.1016/0146-6380(90)90095-H