干酪根中各种元素的稳定同位素分析

Stable Isotope Analysis of Elements in Kerogen

干酪根主要由C、H、O和少量S、N组成,作为石油的先驱物,干酪根中各种元素的同位素分析,对于石油形成和分布的研究以及石油的勘探,具有十分重要的意义。目前,干酪根中C的稳定同位素分析开展得较为普遍,而其它各种元素的同位素分析却很少。本文通过仪器实验条件的最佳化实验,建立了干酪根中各种元素的稳定同位素分析方法,用国际原子能机构标样和国家标准物质对各种标气进行了标定。并对方法的准确性和重复性进行了评价。实验说明分析结果满足石油行业标准和有机地球化学研究的要求。

Kerogen is made of element C, H, O and little S, N. As precursor of oil, stable isotope analysis of elements in kerogen is very important for study of oil generating and distribution. Presently, stable isotope analysis of carbon in kerogen is generally used , but the stable isotope analysis of other elements in kerogen is not done. This study established the method of stable isotope analysis of all elements in kerogen by maximized experi- ment, and estimated the veracity and repeatability of the method by using standard samples and kerogen samples.