铽(Ⅲ)-1,4-双(1′-苯基-3′-甲基-5′-氧代吡唑-4′-基)丁二酮-[1,4]体系荧光性质的研究及应用  

Fluorescence Properties of Terbium(Ⅲ)-1,4-Bis(1-phenyl-3-methyl-5-oxopyrazole-4) butanedione System and Its Analytical Applications

作　　者：阎兰[1] 杨汝栋[1] 姬学鹏 刘海新[1] 邹湘 

机构地区：[1]兰州大学化学系,兰州730000

出　　处：《分析化学》1992年第1期100-103,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：本文研究了Tb(Ⅲ)-1,4-双(′-苯基-3′-甲基-5′-氧代吡唑-4′-基)丁二酮-[1,4](BPMPBD)-溴化十六烷基三甲胺(CTMAB)体系的荧光性质,探讨了响影体系荧光性质的诸因素,确定了最佳实验条件。该体系中Tb(Ⅲ)浓度以2.0×10^(-5)～1.0×10^(-10)mol/L范围内与其荧光强度呈线性关系,检测限可达到5.0×10^(-11)mol/L。应用于合成样品中微量Tb(Ⅲ)的分析,结果令人满意。In this paper, the fluorescence properties of Tb(Ⅲ)-1, 4-bis(1-phenyl-3-methyl-5-oxopyrazole-4)butanedione-cetyltrimethyl ammonium bromide have been studied. The system is useful for the spectrofluorimetric determination of Tb(Ⅲ) in the range of 2.0×10^(-5)～1.0×10^(-10)mol/L. The detection limit was observed to be 5.0×10^(-11)mol/L. Satisfactory results were obtained by the proposed method for the determination of trace Tb(Ⅲ)in several synthetic samples.

关 键 词：铽 BPMPDB 荧光分析 

分 类 号：O614.341[理学—无机化学]