高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (2): 121.

• 研究论文 • 上一篇    下一篇

铽-亚氨基二乙酸-钛铁试剂-表面活性剂荧光体系的研究

朱贵云, 杨景和, 徐世瑶, 牛衍涛   

  1. 山东大学化学系
  • 收稿日期:1984-10-18 出版日期:1986-02-24 发布日期:1986-02-24

A Study on Fluorescence System of Terbium- Imino Diacetric Acid-Tiron-Surfactant

Zhu Guiyun, Yang Jinghe, Xu Shiyao, Niu Yantao   

  1. Department of Chemistry, Shandong University, Jinan
  • Received:1984-10-18 Online:1986-02-24 Published:1986-02-24

摘要: 本文研究了表面活性剂对于Tb(Ⅲ)-亚氨基二乙酸-钛铁试剂荧光体系的增敏作用,在表面活性剂CTMAB参与下,形成的四元离子缔合物的荧光强度比没有CTMAB时增加12倍,确定了测定的最佳条件,Tb3+浓度在6.4×10-4μg/ml—0.32pg/ml范围内符合比耳定律,100倍过量的十一种稀土离子,600倍过量的10种常见阳离子和1000倍过量的七种常见阴离子不干扰测定。

Abstract: The tetrabasic ion associate formed by terbium with imino diacetric acid, tiron and surfactant can been used as the basis of a spectrofluorimetric determination of terbium. The sensitivity of it was 12 times as high as that with absence of surfactant CTMAB.The influence of 10 surfactant and 7 complexones on fluorescence intensity was also studied.

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