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Determination of Uranium in Imported Uranium Trioxide by Wavelength Dispersive X-ray Fluorescence Spectrometry
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Jinliang LIU1, 2, Xin ZHANG1, 2, Chao LIU1, 2, Maosheng SONG1, 2, Feiyan YAN1, 2, Shuguang ZHU3, Long WANG4, Yue LIU4, Liyuan YANG5
Hydrometallurgy of China | 2024, 43(2) : 206 - 213
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Hydrometallurgy of China | 2024, 43(2): 206-213
• Analysis •
Determination of Uranium in Imported Uranium Trioxide by Wavelength Dispersive X-ray Fluorescence Spectrometry
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Jinliang LIU1, 2, Xin ZHANG1, 2, Chao LIU1, 2, Maosheng SONG1, 2, Feiyan YAN1, 2, Shuguang ZHU3, Long WANG4, Yue LIU4, Liyuan YANG5
Affiliations
  • 1 Research Institute No.230, CNNC, Changsha 410007, China
  • 2 Hunan Engineering Technology Research Center for Evaluation and Comprehensive Utilization of Associated Radioactive Mineral Resources, Changsha 410007, China
  • 3 Hubei 303 Warehuose, Wuhan 430000, China
  • 4 China Nuclear Uranium Co., Ltd., Beijing 100013, China
  • 5 China Nuclear Energy Industry Corporation Co., Ltd., Beijing 100032, China
Published: 2024-04-20 doi: 10.13355/j.cnki.sfyj.2024.02.016
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In order to meet the accuracy and timeliness requirements of natural uranium trade reinspection, the working conditions for determining uranium in imported uranium trioxide by wavelength scattering X-ray fluorescence spectroscopy were optimized. Suitable digestion methods, digestion vessels, digestion time and temperature, mylar film, sample quality for determination, and other sample pre-treatment conditions were selected for optimization. The measuring conditions of X-ray tube voltage and current, spectroscopic crystal, wave crest and background angle(2θ), measure the time were determined. The precision, accuracy and reliability of the method were evaluated. The results show that the linear correlation coefficient of the working curve of the method is 0.999 6, and the relative standard deviation (RSD) is 0.029%~0.056%. The relative error between the measurement results and the recommended value of the reference material is ≤0.027%. Compared with the titration method, the absolute deviation of the method is 0.003%~0.093%, the results are accurate and reliable, and The efficiency is 5 times that of titration. The method can meet the requirements for rapid batch analysis of imported uranium trioxide samples.

wavelength dispersive X-ray fluorescence spectrometry  /  uranium trioxide  /  determination  /  uranium  /  digestion
Jinliang LIU, Xin ZHANG, Chao LIU, Maosheng SONG, Feiyan YAN, Shuguang ZHU, Long WANG, Yue LIU, Liyuan YANG. Determination of Uranium in Imported Uranium Trioxide by Wavelength Dispersive X-ray Fluorescence Spectrometry[J]. Hydrometallurgy of China, 2024 , 43 (2) : 206 -213 . DOI: 10.13355/j.cnki.sfyj.2024.02.016
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Year 2024 volume 43 Issue 2
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Article Info
doi: 10.13355/j.cnki.sfyj.2024.02.016
  • Receive Date：2023-04-10
  • Online Date：2025-09-10
  • Published：2024-04-20
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  • Received：2023-04-10
Funding
Affiliations
    1 Research Institute No.230, CNNC, Changsha 410007, China
    2 Hunan Engineering Technology Research Center for Evaluation and Comprehensive Utilization of Associated Radioactive Mineral Resources, Changsha 410007, China
    3 Hubei 303 Warehuose, Wuhan 430000, China
    4 China Nuclear Uranium Co., Ltd., Beijing 100013, China
    5 China Nuclear Energy Industry Corporation Co., Ltd., Beijing 100032, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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