Development of a new method for hydrogen isotope analysis of trace hydrocarbons in natural gas samples
Development of a new method for hydrogen isotope analysis of trace hydrocarbons in natural gas samples
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开发天然气样品中痕量碳氢化合物氢同位素分析新方法
DOI：
10.1016/j.jnggs.2016.11.014
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发表时间：
2016-12
影响因子：
--
通讯作者：
李中平
中科院分区：
文献类型：
--
作者：
李中平
A new method had been developed for the analysis of hydrogen isotopic composition of trace hydrocarbons in natural gas samples by using solid phase microextraction (SPME) combined with gas chromatography-isotope ratio mass spectrometry (GC/IRMS). In this study, the SPME technique had been initially introduced to achieve the enrichment of trace content of hydrocarbons with low abundance and coupled to GC/IRMS for hydrogen isotopic analysis. The main parameters, including the equilibration time, extraction temperature, and the fiber type, were systematically optimized. The results not only demonstrated that high extraction yield was true but also shows that the hydrogen isotopic fractionation was not observed during the extraction process, when the SPME device fitted with polydimethylsiloxane/divinylbenzene/carbon molecular sieve (PDMS/DVB/CAR) fiber. The applications of SPME-GC/IRMS method were evaluated by using natural gas samples collected from different sedimentary basins; the standard deviation (SD) was better than 4‰ for reproducible measurements; and also, the hydrogen isotope values from C1to C9can be obtained with satisfying repeatability. The SPME-GC/IRMS method fitted with PDMS/DVB/CAR fiber is well suited for the preconcentration of trace hydrocarbons, and provides a reliable hydrogen isotopic analysis for trace hydrocarbons in natural gas samples.
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影响因子：
--
作者：
W. Xiao
通讯作者：
W. Xiao
影响因子：
3
作者：
Cai, Chunfang;Zhang, Chunming;Zhang, Baoshou
通讯作者：
Zhang, Baoshou
自然界中簇同位素平衡分布的理论估计
影响因子：
5
作者：
Xiaobin Cao;Yun Liu
通讯作者：
Yun Liu
DOI：
10.1007/s11430-006-0938-8
发表时间：
2006-09
期刊：
Science in China Series D: Earth Sciences
影响因子：
--
作者：
Yongchang Xu;Wenhui Liu;P. Shen;Wanchun Wang;Xiaofeng Wang;Tenger;Yaomin Yan;Ruobin Liu
通讯作者：
Yongchang Xu;Wenhui Liu;P. Shen;Wanchun Wang;Xiaofeng Wang;Tenger;Yaomin Yan;Ruobin Liu
影响因子：
3
作者：
Aichner, Bernhard;Herzschuh, Ulrike;Boehner, Juergen
通讯作者：
Boehner, Juergen