ICP-AES法测定天然二氧化铀中锂、硼、锆、铌  

Determination of Lithium,boron,zirconium and niobium in natural uranium dioxde by ICP-AES

作　　者：李洪 李强 杨箭 贺艳红 

机构地区：[1]中核272铀业有限责任公司,湖南衡阳421004

出　　处：《铀矿冶》2011年第3期157-161,共5页Uranium Mining and Metallurgy

摘　　要：采用TBP萃淋树脂铀基体分离-ICP-AES法测定天然二氧化铀中锂、硼、锆、铌4种杂质元素的含量,当试样平行测定数量为6个时,锂、硼、锆、铌测定结果相对标准偏差依次为0.8%、4.7%、4.9%、1.1%,加标回收率锂为91.9%-96.8%,硼为95.0%-106.5%,锆为93.4%-103.5%,铌为97.8%-103.9%。方法快捷,测定方法满足工厂二氧化铀产品验收质量分析要求。The contents of four impurity elements such as lithium,boron,zirconium and niobium in natural uranium dioxide were determined by TBP levextrel resin uranium matrix separation-ICP-AES method.Relative standard deviations（n=6） for four elements were 0.8% for lithium,4.7% for boron,7.9% for zirconium,1.1% for niobium.The recovery rates were 91.9%-96.8% for lithium,95.0%-106.5% for boron,93.4%-103.5% for zirconium,97.8%-103.9% for niobium.The method is fast,and the results can meet requirements.

关 键 词：二氧化铀 锂 硼 锆 铌 TBP萃淋树脂 ICP-AES 

分 类 号：O657.31[理学—分析化学]