在核燃料后处理过程中,钚的价态组成十分复杂。流程研究和过程控制都需要进行钚价态的分析以达到满意的钚收率和净化效果。分光光度法无需调酸,借助于各价态钚的特征吸收峰,可直接测量钚的价态组成而成为钚价态分析的重要手段,但因灵敏度的限制,对微量钚价态的分析成为 The plutonium valence composition is very complicated during the reprocessing of nuclear fuel. Both flow studies and process controls require the analysis of plutonium valence to achieve satisfactory plutonium yield and cleanup. The spectrophotometric method does not need to adjust the acid. With the help of the characteristic absorption peak of each plutonium, the valence state composition of plutonium can be directly measured and becomes an important method of plutonium valence state analysis. However, due to the limitation of sensitivity,