时间分辨紫外脉冲荧光法测定镓回收工艺中的微量铀  

Determination of Trace Uranium in Gallium Bearded Solution by Induced Time-resolution UV Fluorescence

作　　者：李伯平[1] 郭冬发[1] 董红军[2] 许家伟[2] 崔建勇[1] 张正林[2] 邓文军[2] 谢胜凯[1] 王铁健[1] 王志龙[1] 董晨[1] LI Boping GUO Dongfa DONG Hongjun XU Jiawei CUI Jianyong ZHANG Zhenglin DENG Wenjun XIE Shengkai WANG Tiejian WANG Zhilong DONG Chen(Beijing Research Institute of Uranium Geology, Beijing 100029, China China Aluminum Limited by Share Ltd Guangxi Branch, Pingguo, Guangsci 531499, China)

机构地区：[1]核工业北京地质研究院,北京100029 [2]中国铝业股份有限公司广西分公司,广西平果531499

出　　处：《铀矿地质》2017年第5期308-313,共6页Uranium Geology

基　　金：国家重大科学仪器设备开发专项项目(No.2012YQ250003)资助

摘　　要：镓回收工艺流程中的液体样品经预处理后采用时间分辨紫外脉冲荧光标准加入法测定铀含量。方法最低检出限为0.1μg·mL-1,测定结果相对标准偏差为2.7%,与ICP-MS法比对结果吻合。方法响应速度快,操作简单,适合镓回收工艺流程中微量铀的快速检测。A new method was established to detect the trace uranium in gallium bearing solution in Bayer alumina hydrometallurgy by adding standard Time-Resolved UV-Induced Fluorescence. The LOD of the method is 0. 1 μg · mL- 1, and a RSD o5 2. 7% was achieved by ten times determination o[ uranium of 4 μg· mL-1 in gallium bearded solution. The detecting results was in good agreement with that of ICP- MS. The method is fast, cheap and easy in operation, there for it is applicable for the rapid determina- tion of uranium in gallium recovery process and other mining ＆ metallurgy technology.

关 键 词：时间分辨 紫外脉冲 荧光 铀 镓 

分 类 号：O657.32[理学—分析化学]