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.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
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
关键词
萘啶酮酸
荧光分析法
铕
铽
镝
Nalidixic acid, fluorimetry, europium, terbium, dysprosium
