以吖啶染料荧光猝灭为基础的卤素阴离子检测研究

doi:10.7517/j.issn.1674-0475.2002.05.335

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (5): 335-342.DOI: 10.7517/j.issn.1674-0475.2002.05.335

以吖啶染料荧光猝灭为基础的卤素阴离子检测研究

岳玲, 姜永才, 张晓宏, 吴世康

中国科学院, 理化技术研究所, 北京, 100101

收稿日期:2002-01-23 修回日期:2002-03-18 出版日期:2002-09-23 发布日期:2002-09-23
通讯作者: 吴世康,张晓宏
基金资助:
科技部973基金资助项目(G2000078100)

BASED ON THE FLUORESCENCE QUENCHING OF ACRIDINE DYES FOR DETERMINATION OF HALOGEN ION

YUE Ling, JIANG Yong-cai, ZHANG Xiao-hong, WU Shi-kang

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China

Received:2002-01-23 Revised:2002-03-18 Online:2002-09-23 Published:2002-09-23

摘要/Abstract

摘要： 合成了两种吖啶及吖啶橙盐类小分子化合物和带有吖啶盐的三元共聚物.研究了它们在溶液中的荧光被卤素离子猝灭的问题.发现它们能强烈地被碘离子所猝灭而不易被氯离子猝灭,表明这类化合物有可能用于在有氯离子存在条件下对碘、溴离子的检测.对荧光猝灭机理进行的研究发现,卤素离子的猝灭能力并不和它们对发光化合物的系间窜越和三重态的生成等有关,而是和阴离子对极化分子的作用减弱了分子内的电荷转移能力相关.

关键词: 吖啶染料, 吖啶橙染料, 卤素阴离子, 荧光猝灭, 离子检测探针

Abstract: Two kinds of acridine and acridine orange salts and acridine containing terpolymer were synthesized in this work.The fluorescence quenching of these emissive compounds in solution by halogen anions was studied carefully.It is found that the fluorescence of these compounds can be quenched by iodine ion easier than chloride ion which indicates that this kind of compounds may be used as a sensor for detection of iodide in the presence of chloride.As for the mechanism of fluorescence quenching of acridine it was found that the quenching is not dependent on the heavy atom effect to form triplet state of acridine,but on the fail in the intra molecular charge transfer process of excited acridine by halogen ion introduced.

Key words: acridine dye, acridine orange dye, halogen ion, ionic probe, fluorescence quenching

中图分类号:

岳玲, 姜永才, 张晓宏, 吴世康. 以吖啶染料荧光猝灭为基础的卤素阴离子检测研究[J]. 影像科学与光化学, 2002, 20(5): 335-342.

YUE Ling, JIANG Yong-cai, ZHANG Xiao-hong, WU Shi-kang. BASED ON THE FLUORESCENCE QUENCHING OF ACRIDINE DYES FOR DETERMINATION OF HALOGEN ION[J]. Imaging Science and Photochemistry, 2002, 20(5): 335-342.

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以吖啶染料荧光猝灭为基础的卤素阴离子检测研究

BASED ON THE FLUORESCENCE QUENCHING OF ACRIDINE DYES FOR DETERMINATION OF HALOGEN ION

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