| Cd同位素地质样品的预处理方法研究 |
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| 引用本文： | 张羽旭,温汉捷,樊海峰,王加昇,张锦让.Cd同位素地质样品的预处理方法研究[J].分析测试学报,2010,29(6). |
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| 作者姓名： | 张羽旭 温汉捷 樊海峰 王加昇 张锦让 |
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| 作者单位： | 1. 中国科学院地球化学研究所,矿床地球化学国家重点实验室,贵州,贵阳,550002;中国科学院研究生院,北京,100039
2. 中国科学院地球化学研究所,矿床地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家"973"资助项目，国家自然科学基金资助项目 |
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| 摘 要： | 考察了文献报道的地质样品中Cd同位素测试前的化学分离纯化和富集方法(预处理方法)中的离子交换树脂单柱法回收率低的原因,并在该方法的基础上做了改进,优化了离子交换柱的洗涤顺序和洗液用量.改进后的离子交换树脂单柱法Cd回收率达99.82%,主要干扰元素(Sn、In、Zn、Pb)和基质元素的去除效果均较理想,能更好地满足Cd同位素的测定要求.
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| 关 键 词： | Cd同位素 离子交换 分离提纯 预处理 |
Chemical Pre-treatment Methods for Measurement of Cd Isotopic Ratio on Geological Samples |
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| ZHANG Yu-xu,WEN Han-jie,FAN Hai-feng,WANG Jia-sheng,ZHANG Jin-rang.Chemical Pre-treatment Methods for Measurement of Cd Isotopic Ratio on Geological Samples[J].Journal of Instrumental Analysis,2010,29(6). |
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| Authors: | ZHANG Yu-xu WEN Han-jie FAN Hai-feng WANG Jia-sheng ZHANG Jin-rang |
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| Institution: | ZHANG Yu-xu1,2,WEN Han-jie1,FAN Hai-feng1,WANG Jia-sheng1,ZHANG Jin-rang1,2(1.State Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China,2.The Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | The causes of low-recovery for cadmium(Cd) separated and purified by the ion exchange resin one-column procedures were investigated.Based on the ion exchange resin one-column procedures,a proved method was proposed and the washing procedure and the volume of washing solution was adjusted.The results indicated that the recovery of Cd was up to 99.82%,the potential interferences on Cd isotopes(including Sn,In,Zn,Pb and other interfering matrix elements) were present at negligible levels.The improved method co... |
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| Keywords: | Cd isotope ion exchange separation and purification pre-treatment |
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