6-羟基水杨酸-EDTA体系导数荧光法测定铽、镝  

DERIVATIVE FLUORIMETRIC DETERMINATION OF TERBIUM AND DYSPROSIUM WITH 6-HYDROXY SALICYLIC ACID-EDTA SYSTEM

作　　者：高建文[1] 黄汉国[1] 

机构地区：[1]唐山工程技术学院化工系

出　　处：《唐山工程技术学院学报》1992年第1期8-12,共5页

摘　　要：开发了6-羟基水杨酸-EDTA导数荧光法测定铽、镝的新体系,铽、镝的检测限分别达到1和50ng/ml。应用本法测定了稀土矿物等试样中的铽、镝含量,回收率96～108％,相对标准偏差小于4.2％。Derivative fluorimetric determination of Tb^(3+) and Dy^(3+) with 6-hydroxy salicylic acid-EDTA system have been investigated. The detection limits, of Tb^(3+) and Dy^(3+) were 1 and 50ng/ml, respectively. Using this method, the contents of Tb_4O_7 and Dy_2O_3 in fine ore of bastnasite and Gd_2O_3 were successfully determined by a standard addition mettled. The recovery of Tb^(3+) and Dy^(3+) were 96-108％ with relative standard deviations below 4.2％.

关 键 词：6-羟基水杨酸 铽 镝 导数荧光法 

分 类 号：O614.341[理学—无机化学]