| 高纯金属铕及其氧化物中14个稀土杂质的ICP-MS测定 |
| |
| 引用本文： | 伍星,郑永章,刘湘生,李继东. 高纯金属铕及其氧化物中14个稀土杂质的ICP-MS测定[J]. 现代仪器, 2001, 0(4): 35-38 |
| |
| 作者姓名： | 伍星 郑永章 刘湘生 李继东 |
| |
| 作者单位： | 北京有色金属研究总院,北京,100088 |
| |
| 摘 要： | 本文针对单同位素元素铥与氧化铕基体的氧化物离子的质量数重叠,在ICP-MS谱法中无法测定的问题,研究了P_(507)萃淋树脂小型柱分离。在试验选择的分离条件下,分离周期(进样-淋洗-洗脱-再生)为2.5h。结合直接测定大部分稀土杂质,最终建立了高纯铕中14个稀土杂质元素的ICP-MS分析方法。方法测定下限(ΣRE)<5μg/g,加标回收率在92～111％范围内,RSD％<10％。方法灵敏、快速、简便,满足4～5N高纯金属铕及其氧化物产品分析的要求。
|
| 关 键 词： | ICP-MS 高纯铕 稀土杂质 柱分离 |
Determination of 14 rare earth impurities in high purity Europium metal and its oxide by ICP-MS |
| |
| Wu Xing Zheng Yongzhang Liu Xiangsheng Li Jidong. Determination of 14 rare earth impurities in high purity Europium metal and its oxide by ICP-MS[J]. Modern Instruments, 2001, 0(4): 35-38 |
| |
| Authors: | Wu Xing Zheng Yongzhang Liu Xiangsheng Li Jidong |
| |
| Affiliation: | Beijing General Research Institute for Nonferrous Metals Beijing 100088 |
| |
| Abstract: | In order to solve the problem that thulium could not be detennined in ICP-MS due to the mass overlap of europium polyatomic interference, separation of Tm from Eu matrix with P507 column of small size was studied. Under the selected separation conditions, the separation period including sampling-elution-regeneration was 2.5h. Combined with direct determination of most rare earth impurities, an ICP-MS method was established for the determination of 14 rare earth impurities in high purity europium. The determination limit (∑ RE) of the method was less than 5μg/g, the recoveries of standard addition were 92- 111% and the RSD % is less than 5 % . The method is sensitive, rapid and easy to operation, and meets the requirement for the product analysis of 4 -5N high purity europium metal and its oxide. |
| |
| Keywords: | ICP-MS high purity europium rare earth impurities column separation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
