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Science 18 September 1981:
Vol. 213. no. 4514, pp. 1381 - 1383
DOI: 10.1126/science.213.4514.1381
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Articles

Squalene in Petroleum Asphaltenes

N. SAMMAN 1, T. IGNASIAK 1, C. -J. CHEN 1, O. P. STRAUSZ 1, and D. S. MONTGOMERY 1

1 Hydrocarbon Research Centre, Department of Chemistry, University of Alberta, Edmonton T6G 2G2, Canada

Squalene, 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene, a new biological marker, has been detected in various petroleum asphaltenes and their pyrolysis products. Since squalene is the most common triterpenoid in nature and the biological precursor of the important tetra- and pentacyclic triterpane markers, its detection in asphaltene suggests new ways for marker correlations.

Submitted on September 22, 1980
Revised on April 22, 1981


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