6─羟基水杨酸─EDTA─胶束体系荧光法测定铽、镝、钐、钇和镥  

Fluorometric Determination of Terbium, Dysprosium,Samarium,Yttrium and Lutetium with 6-Hydroxy -Salicyic Acid ─EDTA─Cetyltrimethylammonium Brmide System

作　　者：徐岩[1] 黄汉国[1] 

机构地区：[1]唐山工程技术学院化工系

出　　处：《冶金分析》1995年第3期20-23,共4页Metallurgical Analysis

摘　　要：探讨了６－羟基水杨酸－ＥＤＴＡ－溴化十六烷基三甲铵体系对Ｔｂ￣３＋、Ｄｙ￣３＋、Ｓｍ￣３＋等金属离子激发态→金属离子基态跃迁型荧光增敏及Ｙ￣３＋、Ｌｕ￣３＋对该体系配体激发态→配体基态跃迁型炎光增敏效应。开发了同时测定Ｔｂ￣３＋、Ｄｙ￣３＋、Ｓｍ￣３＋、Ｙ￣３＋（Ｌｕ￣３＋）的新荧光体系。利用该方法成功地测定了某些稀土氧化物中的铽、镝、钐、钇和镥含量。Bsded on the simultaneous determination of Tb ~3+,Dy^3+ and Sm^3+ by the metal ion excited state→ ground state（m→m）type fluorescence in 6-hydroxy -salicylic acid-EDTA-cetyltrimethylammonium bromide system,the possibility of determination of Y^3+,Lu^3+ by the ligand exeitecl state→ligand ground state（1→l） type in the sarme system was studied．As a result, a method of utilizing the m→m and l→1 type fluorescenoe simultaneously to determine Tb^3+，Dy^3+,Sm^3+，Y^3+（Lu^3+） was developed．With this method,the contents of terbium,dysprosium, samarium yttrium and lutetium in several rare earth oxides were successfully determined．

关 键 词：荧光法 6-羟基水杨酸 铽 稀土氧化物 测定 

分 类 号：O614.34[理学—无机化学] O657.31[理学—化学]