论文信息 - 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

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.

Weiguo Liu | Y. Xiao | Y. M. Zhou

[1] A. Long,et al. High-precision measurement of chlorine stable isotope ratios , 1993 .

[2] Y. Xiao,et al. High precision isotopic measurement of chlorine by thermal ionization mass spectrometry of the Cs2Cl+ ion , 1992 .

[3] T. J. Murphy,et al. ABSOLUTE ISOTOPIC ABUNDANCE RATIO AND THE ATOMIC WEIGHT OF CHLORINE , 1962 .

[4] O. A. Schaeffer,et al. The Isotope Abundances of Chlorine from Various Sources1 , 1955 .