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Cd同位素地质样品的预处理方法研究
  • 期刊名称：分析测试学报
  • 时间：2010.6.6
  • 页码：633-637
  • 分类：O433.4[机械工程—光学工程;理学—光学;理学—物理] TF804.3[冶金工程—有色金属冶金]
  • 作者机构：[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, [2]中国科学院研究生院,北京100039
  • 相关基金：国家“973”资助项目（2007CB411402）; 国家自然科学基金资助项目（40773034 40873014 40930425）
  • 相关项目：分散元素富集的地球化学过程及动力学背景-以扬子地块西缘为例
作者： 张羽旭|温汉捷|樊海峰|王加昇|张锦让|
关键词： Cd同位素, 离子交换, 分离提纯, 预处理, Cd isotope, ion exchange, separation and purification, pre-treatment
中文摘要：

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。

英文摘要：

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 could meet the needs of the measurement of Cd isotopic ratio.

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