【摘要】 一种新的、快速的碳、氮、硫同位素测定手段──ＥＡ－ＩＲＭＳ连线分析技术储雪蕾（中国科学院地质研究所，北京１０００２９）关键词元素分析仪－同位素比值质谱仪，连线分析碳，氮，硫同位素碳、氮、硫三种元素的稳定同位素在地学、生态学、环境科学等领域受到了重视，...更多还原

【Abstract】 A new on-line method of rapid measurements for C, N and S isotope ratios has been carried out by using EA-IRMS. EA-IRMS is composited of elemental analyzer (EA) and isotope ratio mass-spectrometer(IRMS), and the two are connectde by split interface. For C,N or/and S isotopic compositions, on-line analyses of sample, involving combustion, gaseous separation, and isotopic determination, are performed automatically in EA-IRMS. Even though the analytical precisions for C,N and S isotopes are still lower than that of conventional methods,but this method is possessed of many advantages,and it will be very useful in investigations on environment, ecology and mineral resources.更多还原