摘要
随着实验技术的进步以及多接收电感耦合等离子体质谱仪(MC-ICP-MS)和热电离质谱仪(TIMS)的发展,近年来Ba同位素的分析方法取得了显著进展。分析精度(δ^(138/134)Ba,2SD)从之前的1‰提高到好于0.05‰。文章综述了近年来高精度Ba同位素分析方法(溶液法)的发展历程,总结了国内外实验室关于不同类型样品的消解、Ba元素化学纯化流程以及Ba同位素质谱测定等方法,并对国内外多个实验室已发表的各类标准物质的Ba同位素组成进行统计。研究结果可为Ba同位素激光原位分析提供参考,为后续分馏机理解析和应用研究提供技术支撑。
With the advancement of analytical techniques and the development of mass spectrometers(MC-ICP-MS and TIMS),the barium isotopic analysis methods have been significantly improved.The analytical precision of δ^(138/134)Ba is better than 0.05‰(2SD)compared with 1‰(2SD)in previous studies.This article reviewed the barium isotope analysis methods(solution methods)in the past ten years,and summarized the digestion methods,the chemical purification procedures,and the instrumental analysis of barium isotopes for different types of samples.In addition,the barium isotopic compositions of various reference materials analyzed in different laboratories are summarized in this study.We hope that this paper will help researchers to establish in situ analysis methods of Ba isotopes,and also provide support in Ba isotope fractionation mechanism deduction and geological applications.
作者
田兰兰
于慧敏
南晓云
黄方
TIAN Lanlan;YU Huimin;NAN Xiaoyun;HUANG Fang(CAS Key Laboratory of Crust-Mantle Materials and Environments,School of Earth and Space Sciences,University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Comparative Planetology,Hefei 230026,China)
出处
《高校地质学报》
CAS
CSCD
北大核心
2021年第3期289-305,共17页
Geological Journal of China Universities
基金
中国科学院战略性先导科技专项资助(XDB41000000)
国防科工局民用航天技术预先研究项目(D020202)联合资助。
