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)  

作　　者：Yuce Wang Wanyun Ma Ni Zhou Jiangling Ren Jian Cao 

机构地区：[1]State Key Laboratory for Mineral Deposits Research,Department of Earth Sciences,Nanjing University [2]Research Institute of Experiment and Testing,PetroChina Xinjiang Oilfield Company

出　　处：《Acta Geochimica》2017年第1期66-73,共8页地球化学学报（英文）

基　　金：funded by the Major State Basic Research Development Program of China(973 project,Grant No.2012CB214803);National Science and Technology Major Project of China(Grant No. 2016ZX05003-005);National Natural Science Foundation of China(Grant Nos.41322017 and 41472100)

摘　　要：As a new technology of analyzing crude oils, comprehensive two-dimensional gas chromatography cou- pled with time-of-flight mass spectrometry （GCxGC- 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.As a new technology of analyzing crude oils,comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry(GC×GCTOFMS) 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 coelution,which cannot be realized by conventional one-dimensional GC-MS.The GC×GC technique is especially effective for analyzing aromatics and low-to-middlemolecular-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×GCTOFMS,showing its broad usefulness in petroleum geochemistry.

关 键 词：Comprehensive two dimensional gas chromatography coupled with time of flight mass spectrometry （GCxGC TOFMS） Petroleum geochemistry Biomarkers Diamondoid Junggar Basin 

分 类 号：P618.13[天文地球—矿床学]