Micro-column convenient chromatography for separation of aromatic hydrocarbon compound and GC/IRMS analysis
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摘要: 介绍了一种方便快捷、经济成本低,可将芳烃馏分中的萘系和菲系化合物进行快速分离的小型柱色谱法.通过GC-MS分析检测结果表明,此方法可将芳烃中的萘系和菲系化合物得到分离和纯化富集,解决了总芳烃馏分在气相色谱易出现的UCM鼓包和多取代基萘系物和菲系物的共溢出现象.并通过GC-IRMS分析萘系和菲系化合物中单体烃碳同位素值检测,取得了很好的效果.此方法试剂用量少、分析步骤简单快捷,可用于芳烃馏分单体烃碳同位素分析的前处理中.Abstract: An easy and economic method to separate alkylated napthalenes and alkylated phenanthrenes from aromatic hydrocarbons was introduced in this paper.The GC-MS tests showed that this method could provide a complete and enriched separation of alkylated napthalenes and alkylated phenanthrenes from crude oils and sedimentary samples,solving the problem that several methyls were difficult to determine accurately by GC-MS tests because of heavy co-elution and laying the foundation for free carbon isotope tests.As an application,this method can be used for aromatic hydrocarbons of monomer hydrocarbon carbon isotope analysis of pre treatment.
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