| 荧光光度法同时测定稀土氧化物中铈钆铽 |
| |
| 引用本文： | 刘春英 黄宝华. 荧光光度法同时测定稀土氧化物中铈钆铽[J]. 理化检验(化学分册), 1999, 35(8): 348-349,352 |
| |
| 作者姓名： | 刘春英 黄宝华 |
| |
| 作者单位： | 广东工业大学分析测试中心，广东工业大学分析测试中心，广东工业大学化工系 广州510090，广州510090 |
| |
| 摘 要： | 在０．６ｍｏｌ．Ｌ＾－１的 到介质中，分别用２５２、２７３、２２０ｎｍ作为Ｃｅ＾３＋、Ｇｄ＾３＋、Ｔｂ＾３＋的激发波和燕生相应最佳发波长为３５０、３１０和５４４ｎｍ。用盐酸体系测定混合样比用硫酸体系测定时，Ｇｄ＾３＋的检出限提高一倍，Ｇｄ＾３＋抗Ｃｅ＾３＋的干扰能力提高１０倍。同时测定三种离子的回收率在９５．３％～１０８．１％之间。
|
| 关 键 词： | 荧光光度法 铈 钆 铽 测定 稀土氧化物 |
FLUOROMETRIC DETERMINATION OF CERIUM GADOLINIUM AND TERBIUM IN RARE EARTH OXIDES |
| |
| Liu Chunying,Huang Baohua and Chen Xiaolin. FLUOROMETRIC DETERMINATION OF CERIUM GADOLINIUM AND TERBIUM IN RARE EARTH OXIDES[J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 1999, 35(8): 348-349,352 |
| |
| Authors: | Liu Chunying Huang Baohua Chen Xiaolin |
| |
| Abstract: | The determination of Ce~(3+) , Gd~(3+) and TV~(3+) in rare earth oxides hy fluorometry is reported in this paper. The determination is carried out in a HC1 medium of 0. 6mol ?L~(-1). The excitation wavelengths for Ce~(3+), Gd~(3+) Tb~(3+) are 252nm, 273nm and 220nm respectively, and the optimum radiation wavelengths of 350nmi 310nm and 544nm are produced. The limit of detection for Gd~(3+) is raised about 100% in HC1 medium as compared with that in H_2SO_4 medium. And also the tolerance of co-existing cerium is raised to about 10 times. The recoveries for the alove mentioned elements are between 95. 3%~-108.1%. |
| |
| Keywords: | Fluorometry Ce~(3+) Gd~(3+) Tb~(3+) Simultaneous determination |
| 本文献已被 CNKI 维普 等数据库收录！ |
