【摘 要】
：
建立了TEVA萃取色层分离大量钚中镎的方法。进行了树脂种类的选择,镎和钚价态的控制实验,镎在TEVA萃取色层柱上吸附,洗脱条件的选择等。推荐分离流程如下:1)调酸调价。取一定
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建立了TEVA萃取色层分离大量钚中镎的方法。进行了树脂种类的选择,镎和钚价态的控制实验,镎在TEVA萃取色层柱上吸附,洗脱条件的选择等。推荐分离流程如下:1)调酸调价。取一定量样品,调至3 mol/L HNO3介质;加入适量0.5 mol/L氨基磺酸亚铁(FS)和抗坏血酸(VC)溶液,放置5~10 min,将镎还原到Np(Ⅳ),钚还原至Pu(Ⅲ)。2)过TEVA萃取色层柱。将经过调酸调价后的样品过TEVA萃取色层柱。
The method of separating large amount of plutonium in TEVA by chromatography was established. The selection of resin types, control experiments on the valence states of plutonium and plutonium, and the adsorption and elution conditions on the TEVA column were carried out. Recommended separation process is as follows: 1) acid price adjustment. A certain amount of sample was taken and transferred to 3 mol / L HNO3 medium. After adding appropriate amount of 0.5 mol / L FS and ascorbic acid solution, the solution was kept for 5 ~ 10 min, Plutonium reduction to Pu (Ⅲ). 2) over TEVA extraction chromatography column. After adjusting the price of the sample after the TEVA extraction chromatography column.
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