节点文献
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
【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2.0×10-5~1.0×10-10mol/L范围内与其荧光强度呈线性关系,检测限可达到5.0×10-11mol/L。应用于合成样品中微量Tb(Ⅲ)的分析,结果令人满意。
【Abstract】 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 2.0×10-5~1.0×10-10mol/L. The detection limit was observed to be 5.0×10-11mol/L. Satisfactory results were obtained by the proposed method for the determination of trace Tb(Ⅲ)in several synthetic samples.
【关键词】 铽;
1,4-双(1-苯基-3’-甲基-5’-氧代吡唑-4’-基)丁二酮-[1,4];
荧光分析;
【Key words】 Terbium; 1; 4-Bis(1-phenyl-3-methyl-5-oxopyrazole-4)butanedione; Fluorescence analysis.;
【Key words】 Terbium; 1; 4-Bis(1-phenyl-3-methyl-5-oxopyrazole-4)butanedione; Fluorescence analysis.;
【基金】 国家自然科学基金
- 【文献出处】 分析化学 ,Chinese Journal of Analytical Chemistry , 编辑部邮箱 ,1992年01期
- 【被引频次】11
- 【下载频次】31