SPECTROFLUORIMETRIC　DETERMINATION　OF　TERBIUM　USING　THE　SYSTEM　OF　Tb(Ⅲ)-TPA

作     者：Jun ZHAO and Guo Hu ZHAO (Department of Basic Coures. Gansu Agricultural University, Lanzhou 730070)Qi LUO (Bailie Oil SchooL Lanzhou 730070) 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1996年第7卷第5期

页      面：453-456页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：TPA Tb SYSTEM THE USING TERBIUM SPECTROFLUORIMETRIC DETERMINATION OF 

摘      要：Abstract: Terbium can form a stable binary chelate with terephthalic acid (benzene-1. 4-dicarboxylic acid(TPA) ) having a ratio of 1: 2 in aqueous solution in the pH range of 5～6. The maximum excitation and emission wavelengths are 260 nm and 545 nm for terbium chelate, respectively. The fluorescence intensity of terbium chelate remains stable in 8h with a relative standard deviation in the range of =4X. The rest of the lanthanide ions and the common foreign ions hardly interfere the determination.