萘啶酮酸体系荧光法测定铕、铽、镝  

Fluorimetric Determination of Europium, Terbium and Dysprosium With Nalidixic Acid System

作　　者：贾祥琪[1] 李兰英[1] 黄汉国[1] 

机构地区：[1]河北理工学院,唐山063009

出　　处：《分析化学》1996年第10期1216-1218,共3页Chinese Journal of Analytical Chemistry

基　　金：河北省自然科学基金

摘　　要：本文研究了萘啶酮酸（NA）体系荧光法同时测定铕、铽、镝的最佳条件。在pH值75、3．0×10-4mol／LNA、激发波长342nm的条件下，可分别在612、546、576nm处测定铕、铽、镝，检测限可分别达到1．3、1．0、4．4μg／L。应用本法同时测定了混合稀土试样中铕、铽、镝，取得较满意的结果。This paper reports the optimum conditions for fluorometric determination of Eu3+, Tb3+, Dy3+ complexes with nalidixic acid and the effect of coexisting ions. The detection limit of Eu, Tb and Dy is 1. 3, 1.0, 4. 4μg/L, respectively. These three ions in mixed rare earth oxides were determined with this method. The results analysed agree well with those obtained by other methods.

关 键 词：萘啶酮酸 荧光分析法 铕 铽 镝 

分 类 号：O614.33[理学—无机化学]