Precise Measurement of Chlorine Isotopes Based on Cs2Cl2 by Thermal Ionization Mass Spectrometry
Precise Measurement of Chlorine Isotopes Based on Cs2Cl2 by Thermal Ionization Mass Spectrometry
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DOI：
10.1080/00032719508000346
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发表时间：
1995-05
影响因子：
2
通讯作者：
Y. Xiao;Y. M. Zhou;Weiguo Liu
中科院分区：
文献类型：
--
作者：
Y. Xiao;Y. M. Zhou;Weiguo Liu
本文报道了一种改进的Cs2Cl+离子热电离质谱准确测定地质样品中氯同位素比值的方法。用该方法测定了NISTSRM975的~(37)Cl/~(35)Cl比值为0.318929±0.000028，精密度为0.009%。该方法已成功地用于研究海水中氯同位素组成的变化和测定氯的原子量。
Abstract An improved procedure for precise measurement of chlorine isotope ratios in geological samples based on Cs2Cl+ ion by thermal ionization mass spectrometry is reported. Using this procedure the 37Cl/35Cl ratio of NIST SRM 975 is determined to be 0.318929±0.000028(1[sgrave]) with a precision of 0.009%(1 [sgrave]). The procedure has been successfully applied to study the variation of chlorine isotopic compositions in seawater and to determine atomic weight of chlorine.