Basaltic and Solution Reference Materials for Iron, Copper and Zinc Isotope Measurements
Basaltic and Solution Reference Materials for Iron, Copper and Zinc Isotope Measurements
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用于铁、铜和锌同位素测量的玄武岩和溶液参考物质
DOI：
10.1111/ggr.12241
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发表时间：
2018-10
期刊：
影响因子：
--
通讯作者：
Hou KeJun
中科院分区：
文献类型：
--
作者：
Li Jin;Tang Suohan;Zhu Xiangkun;Li Zhihong;Li Shizhen;Yan Bin;Wang Yue;Sun Jian;Shi Yao;Dong Aiguo;N.S. Belshaw;Zhang Xingchao;Liu Shengao;Liu Jihua;Wang Deli;Jing Shaoyong;Anthony S. Cohen;Hou KeJun
铁、铜、锌稳定同位素体系在制约多种地球化学和环境过程中有着广泛的应用。中国地质科学院地质研究所（CAGS）与其他参与实验室合作开发了二级标准物质，包括三种溶液（CAGS-Fe，CAGS-Cu和CAGS-Zn）和一种玄武岩（CAGS-玄武岩）。这些材料表现出足够的均匀性和稳定性，用于Fe，Cu和Zn同位素比值的测定。参考值通过实验室间分析比较确定，涉及多达8个采用MC‐ICP‐MS技术的参与实验室，基于提交结果的未加权平均值。同位素组成以每密耳表示法报告，基于参考材料IRMM-014（Fe）、NIST SRM 976（Cu）和IRMM-3702（Zn）。CAGS-Fe、CAGS-Cu和CAGS-Zn溶液各自的参考值如下：δ 56 Fe = 0.83 ± 0.07和δ 57 Fe = 1.20 ± 0.13，δ 65 Cu = 0.57 ± 0.06，δ 66 Zn = −0.79 ± 0.12和δ 68 Zn = −1.65 ± 0.24。CAGS玄武岩的δ 56 Fe = 0.15 ± 0.07，δ 57 Fe = 0.22 ± 0.10，δ 65 Cu = 0.12 ± 0.08，δ 66 Zn = 0.17 ± 0.13，δ 68 Zn = 0.34 ± 0.26（2s）。
Iron, Cu and Zn stable isotope systems are applied in constraining a variety of geochemical and environmental processes. Secondary reference materials have been developed by the Institute of Geology, Chinese Academy of Geological Sciences (CAGS), in collaboration with other participating laboratories, comprising three solutions (CAGS‐Fe, CAGS‐Cu and CAGS‐Zn) and one basalt (CAGS‐Basalt). These materials exhibit sufficient homogeneity and stability for application in Fe, Cu and Zn isotopic ratio determinations. Reference values were determined by inter‐laboratory analytical comparisons involving up to eight participating laboratories employing MC‐ICP‐MS techniques, based on the unweighted means of submitted results. Isotopic compositions are reported in per mil notation, based on reference materials IRMM‐014 for Fe, NIST SRM 976 for Cu and IRMM‐3702 for Zn. Respective reference values of CAGS‐Fe, CAGS‐Cu and CAGS‐Zn solutions are as follows: δ56Fe = 0.83 ± 0.07 and δ57Fe = 1.20 ± 0.13, δ65Cu = 0.57 ± 0.06, and δ66Zn = −0.79 ± 0.12 and δ68Zn = −1.65 ± 0.24, respectively. Those of CAGS‐Basalt are δ56Fe = 0.15 ± 0.07, δ57Fe = 0.22 ± 0.10, δ65Cu = 0.12 ± 0.08, δ66Zn = 0.17 ± 0.13, and δ68Zn = 0.34 ± 0.26 (2s).
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