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WANG Yu, HAN Xiao-yuan, ZHANG Rui-rong, ZHOU Xu, LIU Yan, WU Wang-suo. Preparation of Trace Single Oxidation State Plutonium Solutions[J]. Journal of Nuclear and Radiochemistry, 2014, 36(4): 200-204. DOI: 10.7538/hhx.YX.2014.2013064
Citation: WANG Yu, HAN Xiao-yuan, ZHANG Rui-rong, ZHOU Xu, LIU Yan, WU Wang-suo. Preparation of Trace Single Oxidation State Plutonium Solutions[J]. Journal of Nuclear and Radiochemistry, 2014, 36(4): 200-204. DOI: 10.7538/hhx.YX.2014.2013064
shu

Preparation of Trace Single Oxidation State Plutonium Solutions

  • 1.

    Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

  • 2.

    Northwest Institute of Nuclear Technology, Xi’an 710024, China

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    • Abstract
  • The trace levels of single oxidation state plutonium(Pu(Ⅳ,Ⅴ,Ⅵ)) solution was prepared, and the stability was monitored over time. The oxidation state distribution of the solution was analyzed by solvent extraction methods, in which Pu(Ⅳ) was extracted with TTA and Pu(Ⅳ+Ⅵ) was separated by HDEHP. The Pu(Ⅳ) solution is prepared by heating the solution until dryness in 1 mol/L HNO3 repeatedly, and Pu(Ⅵ) solution is obtained by keeping Pu(Ⅳ) in 0.5-1 mol/L HNO3-0.1 mmol/L KMnO4 system for 24 h. Pu(Ⅵ) is reduced automatically to Pu(Ⅴ) in the dark for 5 d. All of these single plutonium solutions could not keep steady in pH=3.0, 0.01 mol/L NaCl system. Consequently, single oxidation state plutonium solutions need to be prepared freshly for each experiment.
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    • References (17)
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