Analyzing crude oils from the Junggar Basin (NW China) using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC-TOFMS)

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• 作者：Yuce Wang ; Wanyun Ma ; Ni Zhou ; Jiangling Ren ; Jian Cao
• 关键词：Comprehensive two ; dimensional gas chromatography coupled with time ; of ; flight mass spectrometry (GC×GC ; TOFMS) ; Petroleum geochemistry ; Biomarkers ; Diamondoid ; Junggar Basin
• 刊名：Acta Geochimica
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：36
• 期：1
• 页码：66-73
• 全文大小：
• 刊物主题：Geochemistry;
• 出版者：Science Press
• ISSN：2365-7499
• 卷排序：36

文摘

As a new technology of analyzing crude oils, comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC-TOFMS) has received much research attention. Here we present a case study in the Junggar Basin of NW China. Results show that the hydrocarbons, including saturates and aromatics, were all well-separated without large co-elution, which cannot be realized by conventional one-dimensional GC–MS. The GC×GC technique is especially effective for analyzing aromatics and low-to-middle-molecular-weight hydrocarbons, such as diamondoids. The geochemical characteristics of crude oils in the study area were investigated through geochemical parameters extracted by GC×GC-TOFMS, improving upon the understanding obtained by GC–MS. Thus, the work here represents a new successful application of GC×GC-TOFMS, showing its broad usefulness in petroleum geochemistry.