| 用GC-MS、GC-MS-MS方法检测某些有机质成熟度参数的比较 |
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| 引用本文： | 宋桂侠,李振广,于佰林,孙国荣.用GC-MS、GC-MS-MS方法检测某些有机质成熟度参数的比较[J].分析测试学报,2004,23(Z1):306-308. |
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| 作者姓名： | 宋桂侠 李振广 于佰林 孙国荣 |
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| 作者单位： | 大庆油田有限责任公司勘探开发研究院,黑龙江,大庆,163712 |
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| 摘 要： | Tm／Ts,C29甾烷ααα20S／(20S+20R)是判断原油成熟度的重要参数。所以能否准确地检测这些化合物就显得尤为关键和重要。以往我们通常采用GC-MS单极质谱来检测原油和烃原岩抽提物中饱和烃里的萜烷和甾烷成分。但利用GC-MS单极质谱分析得到的m／z191质量色谱图中,Tm、Ts往往与三环和四环萜烷同时共流出,以至有时导致假的Tm／Ts比值。利用GC-MS单极质谱分析得到的m／z217质量色谱图中规则甾烷分布受重排甾烷的影响,很难区分C29甾烷和4-甲基甾烷(即没有办法排除共流峰的干扰)。这是因为Tm、Ts和C29甾烷等生物标记化合物在特定的色谱柱中有
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The Comparison of the Parameters of Some Organic Matter Maturity Detected with GC-MS and GC-MS-MS |
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| SONG Gui-xia,LI Zhen-guang,YU Bai-lin,SUN Gou-rong.The Comparison of the Parameters of Some Organic Matter Maturity Detected with GC-MS and GC-MS-MS[J].Journal of Instrumental Analysis,2004,23(Z1):306-308. |
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| Authors: | SONG Gui-xia LI Zhen-guang YU Bai-lin SUN Gou-rong |
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| Abstract: | This paper introduced two methods, GC - MS and GC - MS - MS, with which we could detect such organic geochemistry parameters as Tm/Ts,aaaC29 20S/(20S + 20R) . For a aaaC29 20S/(20S + 20R), the value detected with GC - MS - MS was better than GC - MS. For a Tm/Ts, however, GC - MS is better than GC-MS-MS. |
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| Keywords: | GC - MS GC - MS - MS Organic geochemistry parameter |
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