RADIATION PROTECTION ›› 2016, Vol. 36 ›› Issue (6): 413-416.

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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

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

CLC Number: 

  • O657.63