基于MC-ICP-MS的土壤中铀的分析方法

Soil Uranium Analysis Method Based on MC-ICP-MS

针对多接收电感耦合等离子体质谱(MC-ICP-MS)设备测量,通过环境土壤样品溶解、铀的分离纯化、上机测量及微量铀结果分析等过程,进行电感耦合等离子体质谱(ICP-MS)微量元素分析方法研究。为考察化学流程对测量结果的影响,在正式土壤样品处理前进行了全流程空白样本底测量,结果表明:流程的本底铀含量相对于样品中铀含量仅为0.1%以下,对测量结果影响较小,能够满足环境样品中微量元素分析的要求。

The method of trace elements analysis on MC-ICP-MS was studied, including soil samples dissolution, uranium purification, measurement and analysis of results. The blank sample background of whole process is less than 0.1% of uranium in the sample, having little influence on the measurement results.