本工作研究了钚标准物——四水硫酸钚中22种杂质元素萃取色谱分离-光谱测定法。采用磷酸三丁酯和三异辛胺(1:1)混合萃取剂作固定相、聚偏氟乙烯粉作支持物,5N硝酸作流动相。将50mg Pu(SO_4)_2·4H_2O溶解于5NHNO_3中,再将样品溶液引入装有载着TBP-TIOA的聚偏氟乙烯粉的色谱柱上。Pu(Ⅳ)被吸附,待测22种元素 This work studied the extraction of plutonium standards - four kinds of plutonium sulfate in 22 kinds of impurity elements extraction chromatography - spectrometry. Tributyl phosphate and triisooctylamine (1: 1) mixed extractant were used as stationary phase, polyvinylidene fluoride powder as support and 5N nitric acid as mobile phase. 50 mg of Pu (SO 4) 2 · 4H 2 O was dissolved in 5N HNO 3 and the sample solution was then introduced onto a column packed with polyvinylidene fluoride powder carrying TBP-TIOA. Pu (Ⅳ) is adsorbed, 22 kinds of elements to be tested