高盐份强放废液中痕量Am的测定  

DETERMINATION OF TRACE AMERICIUM IN HIGH LEVEL RADIOACTIVE WASTE WITH HIGH SALT

作　　者：江浩[1] 朱国辉[1] 王孝荣[1] 王效英[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所

出　　处：《原子能科学技术》1999年第2期182-188,共7页Atomic Energy Science and Technology

摘　　要：建立了一个可用于高盐份强放复杂体系的准确测定痕量Ａｍ的放射化学分析方法。对影响测定准确度的几个主要因素进行了研究。实验结果表明：全程Ａｍ的回收率高（８４％），重复性好，对裂变元素净化好（ＤＦγ＞１×１０６）。Ａｍ与干扰测定的Ｎｐ、Ｐｕ、Ｕ及ＲＥ（Ⅲ），Ｆｅ（Ⅲ），Ａｌ（Ⅲ）等组分的分离效果也是令人满意的。用真实样品进行验证。The subject of this work is to develop a radiochemical method for accuracy determination of trace americium in high level radioactive waste with high salt. Some effects on the accuracy of determination for americium are studied. The experimental results show the highly recovery (84 %), good repeatability and good decontamination of fission products (DF tot,γ > 1×10 6 ) for determination of Am by using the recommended analytical procedure. The separation of Np, Pu, U, RE(Ⅲ), Fe(Ⅲ) and Al(Ⅲ) which interfere the determination of Am is satisfactory. The satisfactory results for determination of actual high level radioactive waste samples are obtained.

关 键 词：离子交换 TOPO萃取 电沉积 高效废液 镅测定 

分 类 号：TL276[核科学技术—核燃料循环与材料]