气相色谱-质谱联用技术在砷、硒、汞和铅形态分析中的应用

摘要

气相色谱-质谱联用技术具有分析速度快、灵敏、准确的优点,其在元素形态分析中的应用越来越广泛.本文对气相色谱-质谱联用技术(GC-MS)的接口设计方法做一简要回顾.并介绍了砷、硒、汞和铅的存在形式及其形态分析的意义,综述了气相色谱与质谱联用技术在砷、硒、汞和铅四种元素的形态分析中的应用情况.展望了该联用技术的发展趋势,及其局限性.%Because of its merits of rapid analytical speed, high sensitivity and high accuracy, gas chro-matography-mass spectrometry is used more and more widely in element speciation analysis. In this study, the interface design methods of GC-MS were briefly reviewed. Moreover, the existing forms and speciation analysis significance of arsenic, selenium, mercury and lead were introduced, and the application of GC-MS in speciation analysis of arsenic, selenium, mercury and lead were reviewed. Finally, the development tendency and limitation of this combined technology was prospected.