Characterization of extra heavy gas oil biomarkers using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry

被引：39

作者：

Avila, Barbara M. F. ^{[1
]}

Aguiar, Andre ^{[1
]}

Gomes, Alexandre O. ^{[2
]}

Azevedo, Debora A. ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Quim, Ilha Fundao, BR-21941909 Rio De Janeiro, Brazil

[2] Petrobras SA, CENPES PDP TPAP, Ilha Fundao, BR-21941909 Rio De Janeiro, Brazil

来源：

ORGANIC GEOCHEMISTRY | 2010年 / 41卷 / 09期

关键词：

GC X GC; SAMPLES; IDENTIFICATION; ASPHALTENES; MIXTURES; TOF;

D O I：

10.1016/j.orggeochem.2010.03.008

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC x GC-TOFMS) was used for the characterization of hydrocarbons in extra heavy gas oil (EHGO) Assignment of individual EHGO compounds was successfully achieved, in addition to group-type identification on the chromatographic plane. Many biomarkers, such as terpanes and steranes. were assigned Paraffins, hopenes and moretenes were also detected GC x GC-TOFMS not only allowed assignment of a large number of compounds but also resolution of many co-eluting components, such as tricyclic and pentacyclic terpanes The technique is therefore suited for EHGO analysis. The results could guide the choice of a petroleum conversion process that generates products with higher added value (C) 2010 Elsevier Ltd All rights reserved.

引用

页码：863 / 866

页数：4

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