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TAN BINGMEI CHEN YAOZHONG LIN ZHANGJI (China Institute of Atomic Energy, P.O. Box 275, Beijing, 102413). THE DETERMINATION OF THE CONTENT OF Np ( Ⅲ, Ⅳ ) OR Np ( Ⅴ, Ⅵ )USING LaF_3 AS CARRIER[J]. Atomic Energy Science and Technology, 1992, 26(1): 85-85. DOI: 10.7538/yzk.1992.26.01.0085
Citation: TAN BINGMEI CHEN YAOZHONG LIN ZHANGJI (China Institute of Atomic Energy, P.O. Box 275, Beijing, 102413). THE DETERMINATION OF THE CONTENT OF Np ( Ⅲ, Ⅳ ) OR Np ( Ⅴ, Ⅵ )USING LaF_3 AS CARRIER[J]. Atomic Energy Science and Technology, 1992, 26(1): 85-85. DOI: 10.7538/yzk.1992.26.01.0085
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THE DETERMINATION OF THE CONTENT OF Np ( Ⅲ, Ⅳ ) OR Np ( Ⅴ, Ⅵ )USING LaF_3 AS CARRIER

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  • It is suggested that the content of Np( Ⅲ, Ⅳ )or Np(Ⅴ,Ⅵ)can be analysed, which is based on the studing the different carrier quantity for the various valency of Np using LaF_3 carrier method. At a certain condition:2.0 mol/l HNO_3-0.05mg/ml K_2Cr_2O_7acting as supporting oxident Np( Ⅲ ) and Np(Ⅳ)can be qrantitat ively coprecipitated with LaF_3, but Np(Ⅴ) and Np(Ⅵ ) can be hardly even coprecipitated. From these, the content and percentage for Np(Ⅲ, Ⅳ ) or Np ( Ⅴ, Ⅵ ) can be respectively determinated.
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