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dc.contributor.authorGrice, Kliti
dc.contributor.authorde Mesmay, Romain
dc.contributor.authorGlucina, Andrew
dc.contributor.authorWang, Sue Xuan
dc.date.accessioned2017-01-30T15:03:25Z
dc.date.available2017-01-30T15:03:25Z
dc.date.created2009-03-05T00:57:00Z
dc.date.issued2008
dc.identifier.citationGrice, Kliti and de Mesmay, Romain and Glucina, Andrew and Wang, Sue Xuan. 2008. An improved and rapid 5A molecular sieve method for gas chromatography isotope ratio mass spectrometry of n-alkanes (C8-C30+). Organic Geochemistry. 39 (3): pp. 284-288.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/42950
dc.identifier.doi10.1016/j.orggeochem.2007.12.009
dc.description.abstract

The accurate analysis of stable carbon isotope ratios of individual n-alkanes in petroleum by gas chromatography isotope ratio mass spectrometry (GC-irMS) requires that the n-alkanes be separated from branched/cyclic hydrocarbons. Conventional separation methods include urea adduction or separation using different types of molecular sieves (5A, ZSM5). Although the molecular sieves procedures are well established, they generally require the use of hydrofluoric (HF) acid, a potentially hazardous material, to digest and release compounds trapped within the sieve. In this study, a simplified 5A method that avoids the use of HF acid has been developed to isolate n-alkanes ranging from n-C8 to at least n-C30 from a saturated petroleum hydrocarbon fraction. 12% cyclohexane in n-pentane was found to be a sufficient solvent in extracting most of the n-alkanes (>90%) in the n-C8 to n-C30 range from the sieve. The new 5A sieve procedure is a rapid and safer method for extracting n-alkanes from petroleum to yield fractions amenable for routine GC-irMS.

dc.publisherElsevier Science
dc.subjectmolecular sieving
dc.subjectn-alkanes
dc.subjectpetroleum
dc.subjectstable carbon isotopes
dc.titleAn improved and rapid 5A molecular sieve method for gas chromatography isotope ratio mass spectrometry of n-alkanes An improved and rapid 5A molecular sieve method for gas chromatography isotope ratio mass spectrometry of n-alkanes (C8–C30+)
dc.typeJournal Article
dcterms.source.volume39
dcterms.source.number3
dcterms.source.startPage284
dcterms.source.endPage288
dcterms.source.issn01466380
dcterms.source.titleOrganic Geochemistry
curtin.note

The link to the journal’s home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/476/description#description

curtin.note

Copyright © 2008 Elsevier Ltd. All rights reserved

curtin.accessStatusFulltext not available
curtin.facultyDepartment of Applied Chemistry
curtin.facultySchool of Science
curtin.facultyFaculty of Science and Engineering


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