Study on Analytical Method of Pu(III, IV) and U(IV) in 1BP

U(Ⅳ)is taken as reductant in uranium and plutonium separation process of China spent nuclear fuel reprocessing pilot plant.Rapid determining the concentrations of Pu(Ⅲ)/Pu(Ⅳ)and U(Ⅳ)in 1BP is vital to monitor 1B processing stage and condition the subsequent processing solution.A rapid method for determining the concentrations of Pu(Ⅲ)/Pu(Ⅳ)and U(Ⅳ)in 1BP was developed