Coupling of high temperature glass capillary columns to a mass spectrometer. GC/MS analysis of metalloporphyrins from Julia Creek oil shale samples |
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Authors: | Wolfgang Blum Philippe Ramstein Geoffrey Eglinton |
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Abstract: | This paper reports on the instrumental and experimental prerequisites of the combination of high temperature gas chromatography (HTGC) with electron impact- (El) and chemical ionization (Cl) mass spectrometry (HTGC/EI/CIMS). It describes a newly developed high temperature GC/MS interface in detail and discusses the particular problems arising in HTGC/MS. The capabilities of the system are demonstrated by direct analyses of nickel- and vanadyl porphyrins, extracted from Julia Creek oil shale. The use of CI/NH3 in the GC/MS analysis of metalloporphyrins is demonstrated for the first time. |
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Keywords: | High temperature GC/EI/CIMS Capillary columns, glass CH3O-terminated stationary phase Nickel- and vanadyl porphyrins Julia Creek oil shale |
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