元素同位素质谱测定新方法及其应用研究  

The New Methods for Isotopic Measurement of Elements by Mass Spectrometry and Investigation of its Application

作　　者：肖应凯[1] 刘卫国[1] 祁海平[1] 王蕴慧[1] 周引民[1] 

机构地区：[1]中国科学院青海盐湖研究所,西宁810008

出　　处：《盐湖研究》1998年第2期73-85,共13页Journal of Salt Lake Research

摘　　要：该项研究成果总结了利用石墨的非还原热离子发射特性所建立的高精度热电高质谱测定硼氯溴同位素的方法，实现了硼氯溴同位素测定的重要突破。该成果对质谱中的热电离理论进行了较深入地讨论，建立了高精度质谱测定锂铟铈同位素的方法。采用以上所建立的方法，开展了我国盐湖硼锂氯稳定同位素化学及地球化学的研究，初步揭示了柴达林盐湖中硼锂氯同位素的分布特征，在我国开辟了稳定同位素研究的新领域。The new methods for isotopic measurements of boron,chlorine and bromine by thermal ionization mass spectrometry using the non-reduction characteristics of thermal ion emission have been summarized and the important evolution in isotopic measurements of boron,chlorine and bromine has been achieved in this study. The theory of thermal ionization mass spectrometry has been deeply discussed and the procedures for high-precision measurement of isotopes of lithium,indium and cerium have been established. Using these method the stable isotopic chemistry and geochemistry of boron,lithium and chlorine in salt lakes of China have been investigated. The isotopic distribution specialties of boron,lithium and chlorine in salt lakes of Qaidam Basin were revealed. A new research field in study of stable isotope in China was opened.

关 键 词：石墨 硼锂氯溴铟铈 同位素测定 同位素地球化学 

分 类 号：P597[天文地球—地球化学]