萃取分离ICP-AES法测定含锆铀铌合金中的杂质元素  

Determination of impurity elements in zirconium-bearing uranium-niobium alloy by ICP-AES

作　　者：张正雄[1] 刘勇[1] 沈岚[1] 

机构地区：[1]中国工程物理研究院,绵阳621900

出　　处：《分析试验室》2004年第6期63-65,共3页Chinese Journal of Analysis Laboratory

摘　　要：研究了在HNO3介质中用磷酸三丁酯(TBP)同时萃取铀和锆,鞣酸沉淀铌的分离条件。电感耦合等离子体原子发射光谱(ICP AES)法同时测定了含锆铀铌合金中铁、铜、锰、硅、铝和镍6种杂质元素。测定范围在10～1000μg/g之间,回收率为97%～106%,相对标准偏差为5%～10%。Six impurity elements, Fe,Mn,Si,Cu,Al, and Ni in prepared zirconium-bearing uranium-niobium alloy were determinated by ICP-AES. The sample was treated by tri-butyl phosphate(TBP) for extracting uranium, zirconium and handled with tannin for precipitating Nb from solution. The range for determination was from 10 to 1000 μg/g, the RSD was less than 10% and the recovery was from 97% to 106%.

关 键 词：铀铌合金 杂质元素 ICP-AES 

分 类 号：O557.31[理学—热学与物质分子运动论]