Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS
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 a...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Pergamon-Elsevier
2001
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/32646 |
| _version_ | 1848753720576180224 |
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| author | Barber, Cindy Bastow, Trevor Grice, Kliti Alexander, Robert Kagi, Robert |
| author_facet | Barber, Cindy Bastow, Trevor Grice, Kliti Alexander, Robert Kagi, Robert |
| author_sort | Barber, Cindy |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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 cyclodextrinstationary phases. Numerous derivatised cyclodextrin columns were investigated. A 50 m permethyl-b-cyclodextrin was found to give the best resolution (R=0.8 using hydrogen as the carrier gas and R=0.7 using helium). |
| first_indexed | 2025-11-14T08:29:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-32646 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:29:00Z |
| publishDate | 2001 |
| publisher | Pergamon-Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-326462017-09-13T15:55:19Z Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS Barber, Cindy Bastow, Trevor Grice, Kliti Alexander, Robert Kagi, Robert Phytane Cyclodextrin stationary phases Crocetane 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 cyclodextrinstationary phases. Numerous derivatised cyclodextrin columns were investigated. A 50 m permethyl-b-cyclodextrin was found to give the best resolution (R=0.8 using hydrogen as the carrier gas and R=0.7 using helium). 2001 Journal Article http://hdl.handle.net/20.500.11937/32646 10.1016/S0146-6380(01)00031-6 Pergamon-Elsevier restricted |
| spellingShingle | Phytane Cyclodextrin stationary phases Crocetane Barber, Cindy Bastow, Trevor Grice, Kliti Alexander, Robert Kagi, Robert Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title | Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title_full | Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title_fullStr | Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title_full_unstemmed | Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title_short | Analysis of crocetane in crude oils and sediments: novel stationary phases for use in GC-MS |
| title_sort | analysis of crocetane in crude oils and sediments: novel stationary phases for use in gc-ms |
| topic | Phytane Cyclodextrin stationary phases Crocetane |
| url | http://hdl.handle.net/20.500.11937/32646 |