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类异戊二烯烷烃非对映异构体的色谱—质谱分离及条件优化研究
石油实验地质
2012年 34卷 第4期
阅读：138
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Title
Separation of diastereoisomers of acyclic isoprenoid alkanes by GC-MS and optimization of operation conditions
Authors
Wu Yingqin
Wang Yongli
Lei Tianzhu
Wang Youxiao
Xia Yanqing
单位
中国科学院油气资源研究重点实验室, 兰州730000
2. 中国科学院研究生院, 北京100039
Organization
Key Laboratory of Petroleum Resources Research, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China
摘要
运用GC-MS对准噶尔盆地煤样及孤岛稠油样中的饱和烃生物标志化合物进行分析,首次检测到了丰富的无环类异戊二烯烷烃类化合物:iC18(2,6,10-三甲基十五烷)、Pr(2,6,10,14-四甲基十五烷)和Ph(2,6,10,14-四甲基十六烷)及其非对映异构体。并考察了色谱柱类型、长度、程序升温等对类异戊二烯烷烃非对映异构体分离效果的影响,同时确定了程序升温色谱分离类异戊二烯烷烃非对映异构体的最佳条件,对样品中的降姥鲛烷、姥鲛烷、植烷与其非对映异构体进行了分离,对姥鲛烷、植烷的分离度最高可分别达0.7及0.9。
Abstract
The separation of diastereoisomers of acyclic isoprenoid alkanes on HP-5 columns was firstly reported by gas chromatography and mass spectrometry(GC-MS).The biomarkers of saturated hydrocarbons from coal samples of the Junggar Basin and crude oils of Gudao area were determined,and iC18(2,6,10-trimethyl pentadecane),Pr(2,6,10,14-tetramethyl pentadecane),Ph(2,6,10,14-tetramethyl hexadecane) and their diastereoisomers were identified from coal samples and crude oils.The effects of type and length of chromatographic column and temperature programming on the separation of diastereoisomers of acyclic isoprenoid alkanes were investigated.The most favorable separation conditions were concluded.The diastereoisomers were separated from nor-pristane,Pr and Ph,and the maximal resolution factors of Pr and Ph are 0.7,0.9,respectively.
关键词：
类异戊二烯烷烃;
非对映体;
手性分离;
气相色谱质谱;
油气地球化学;
Keywords:
acyclic isoprenoid alkane;
diastereoisomers;
chiral separation;
GC-MS;
petroleum geochemistry;
基金项目
国家重点基础研究发展计划“973计划”项目(2012CB214701-05);中国科学院战略性先导科技专项(XDA05120204);中国科学院知识创新工程重要方向项目(KZCX2-EW-104);国家自然科学基金资助项目(41172169,40643016)联合资助
DOI
https://doi.org/10.11781/sysydz201204422
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