• Journal of Radiation Research and Radiation Processing
  • Vol. 41, Issue 4, 040701 (2023)
Mingliang BI1、*, Shen LIAO2, and Xiaoyan LI3
Author Affiliations
  • 1Radiation Environment Monitoring Center of Guangdong Province Nuclear Industry Geological Bureau, Guangzhou 510800, China
  • 2Guangdong Nuclear Power Engineering Survey Institute, Guangzhou 510800, China
  • 3School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China
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    DOI: 10.11889/j.1000-3436.2023-0024 Cite this Article
    Mingliang BI, Shen LIAO, Xiaoyan LI. Optimization of thorium content determination method in typical associated ore waste residue[J]. Journal of Radiation Research and Radiation Processing, 2023, 41(4): 040701 Copy Citation Text show less

    Abstract

    Taking six typical associated ore waste samples as the research object, the thorium content in the samples was determined by spectrophotometry and the factors affecting the test results were analyzed. Three factors that may obviously affect the accuracy of the results were selected and optimized the experimental conditions by controlling variates, and the results were compared with inductively coupled plasma mass spectrometry and gamma spectrometry to prove the reliability of the optimization method. The results showed that the main affecting factors in the sample were the digestion frequency, colorimetric time, and residual extractant. The detection accuracy and efficiency of thorium in the six typical associated ore residues were improved by increasing the digestion frequency to 3 times, ensuring a colorimetric time of 3 min to 5 min, and adding hydrogen peroxide and perchloric acid to remove the extractant.
    Mingliang BI, Shen LIAO, Xiaoyan LI. Optimization of thorium content determination method in typical associated ore waste residue[J]. Journal of Radiation Research and Radiation Processing, 2023, 41(4): 040701
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