GC-MS characterisation of C 27 and C 28 triterpanes in sediments and petroleum

Details GC-MS characterisation of C 27 and C 28 triterpanes in sediments and petroleum GC-MS characterisation of C 27 and C 28 triterpanes in sediments and petroleum

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47.1033v&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 47, Issue 6, pp.1033-1040

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Scientific paper

Earlier studies have shown that an unusual C 27 triterpane is abundant in sediments from the Norwegian Continental Shelf and the North Sea. This compound was assigned the tentative structures 24,28,30-trisnormoretane or 25,28,30-trisnormoretane, but we have now shown from detailed retention time measurements and a reinterpretation of the mass spectral data that its correct structure is 17 (H),18 (H),21 (H)-25,28,30-trisnorhopane. Two other triterpanes, 25,28,30-trisnormoretane and 28,30-bisnormoretane, have also been identified as minor constituents of extracts of sediments from the North Sea. Possible origins for these compounds are discussed.

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