辐射防护 ›› 2016, Vol. 36 ›› Issue (6): 413-416.

• 经验交流 • 上一篇    下一篇

电感耦合等离子体质谱法测定水中钍

潘洁1, 刘建华1, 董冲2, 唐英瑛2   

  1. 1.湖北省核与辐射环境监测技术中心,武汉 430072;
    2.湖北省核工业放射性核素检测实验中心,湖北 孝感 432000
  • 收稿日期:2015-11-09 出版日期:2016-11-20 发布日期:2021-11-15
  • 作者简介:潘洁(1985—),女,2007年毕业于武汉科技学院环境工程专业,2010年毕业于中国地质大学武汉环境科学与工程专业,获硕士学位。E-mail:whpanjie@126.com

Determination of thorium in environmental water by inductively coupled plasma mass spectrometry (ICP-MS)

Pan Jie1, Liu Jianhua1, Dong Chong2, Tang Yingying2   

  1. 1. Radiation Monitoring Technical Center of Hubei Province, Wuhan 430072;
    2. Nuclear Industry Radioactive Nuclein Test Center of Hubei Province, Hubei Xiaogan 432000
  • Received:2015-11-09 Online:2016-11-20 Published:2021-11-15

摘要: 用Mg(OH)2对水中钍进行浓集后,采用电感耦合等离子体质谱法(ICP-MS)对其进行测量。结果表明,方法线性相关系数为0.999 6,加标回收率在82.5%~92.2%之间,平行样的相对标准偏差约5%,方法的测定下限为1.2 ng/L。采用本方法对2015年第3季度湖北省国控点和省控点样品进行分析,19个样品的测量值范围为7~149 ng/L,在历年测量值范围之内。

关键词: 电感耦合等离子体质谱, 水,

Abstract: After the preconcentration of Magnesium Hydroxide, the content of thorium in environmental water was measured by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Results showed that the linear correlation coefficient were 0.999 6, the recovery of standard addition was 82.5%—92.2%, the relative standard deviation of duplicate samples were about 5%, and the reliable quantitation limit of the method was 1.2 ng/L. The measurement results of environmental water at national and provincial controlling sties of Q3 2015 in Hubei Province were within the range of previous years’ measured values.

Key words: ICP-MS, water, thorium

中图分类号: 

  • O657.63