ANALYSIS OF CROCETANE IN CRUDE OILS AND SEDIMENTS: NOVEL STATIONARY PHASES FOR USE IN GC-MS

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dc.contributor.author Barber C.J.
dc.contributor.author Bastow T.P.
dc.contributor.author Grice K.
dc.contributor.author Alexander R.
dc.contributor.author Kagi R.I.
dc.date.accessioned 2021-02-12T05:10:11Z
dc.date.available 2021-02-12T05:10:11Z
dc.date.issued 2001
dc.identifier https://www.elibrary.ru/item.asp?id=604129
dc.identifier.citation Organic Geochemistry, 2001, 32, 5, 765-769
dc.identifier.issn 0146-6380
dc.identifier.uri https://repository.geologyscience.ru/handle/123456789/24803
dc.description.abstract Cyclodextrin GC stationary phases, well documented for their superior isomeric separation capabilities, have been investigated in the separation of crocetane (2,6,11,15-tetramethylhexadecane) and phytane (2,6,10,14-tetramethylhexadecane). Although crocetane has been attributed to methane oxidizing archaea, its general occurrence in crude oils and sediments is yet to be fully established due to difficulties associated with the GC-MS analysis since crocetane co-elutes with phytane when chromatographed on most liquid phase coated capillary columns. A method is described for the routine GC-MS analysis of crocetane and phytane in crude oils and sediments, using cyclodextrin stationary phases. Numerous derivatised cyclodextrin columns were investigated. A 50 m permethyl-β-cyclodextrin was found to give the best resolution (R=0.8 using hydrogen as the carrier gas and R=0.7 using helium).
dc.subject CROCETANE
dc.subject PHYTANE
dc.subject CYCLODEXTRIN STATIONARY PHASES
dc.title ANALYSIS OF CROCETANE IN CRUDE OILS AND SEDIMENTS: NOVEL STATIONARY PHASES FOR USE IN GC-MS
dc.type Статья


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