锆存在时铀中杂质元素的化学分离-ICP-AES法  

Determination of seven impurity elements in zirconium-bearing uranium metal 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》2002年第1期36-38,共3页Chinese Journal of Analysis Laboratory

摘　　要：采用磷酸三丁酯 (TBP) 氢化煤油萃取铀、过氧化氢掩蔽钛、磷酸氢二铵沉淀锆的方法 ,用ICP AES法同时测定了锆存在时铀中的铁、锰、铜、硅、铝、镍、和钛 7种杂质元素的含量。当测定范围在 1 0 μg/g～ 1 0 0 0 μg/g时 ,相对标准偏差<9.0 % ,回收率为 96%～ 1 0 9%Seven impurity elements such as Fe,Mn,Si,Cu,Al,Ni and Ti in prepared zirconium bearing uranium metal samples were determinated by ICP AES. The sample was treated succesivelly by tributyl phosphate(TBP) to extract uranium, by (NH 4) 2HPO 4 to precipitate zirconium, and by H 2O 2 to mask Ti. The suitable range for the determination is from 10 μg/g to 1000 μg/g with RSD of less than 9 0% and recovery of 96% to 109%.

关 键 词：锆 铀 沉淀 杂质元素 化学光谱 化学分离 ICP AES 冶炼 测定 分析 萃取 

分 类 号：TL212.4[核科学技术—核燃料循环与材料] TL271.4