QUENCHING FLUORESCENCE OF SAFRANINE-T BY INORGANIC-IONS IN AQUEOUS AND NONIONIC MICELLAR MEDIA

被引：23

作者：

BHATTACHARYA, SC

DAS, H

MOULIK, SP

机构：

[1] Physical Chemistry Laboratory, Jadavpur University, Calcutta

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1994年 / 84卷 / 01期

关键词：

D O I：

10.1016/1010-6030(94)03843-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fluorescence quenching of Safranine T by [Fe(CN)6]3-, [Fe(CN)6]4-, Fe2+, Co2+, Cu2+, Ni2+ and Mn2+ was studied in aqueous solutions as well as in solutions of non-ionic micelles of Triton X-100 and Tweens (20, 40, 60 and 80). The rate constants of quenching were calculated using the Stern-Volmer equation. In a micellar medium, the quenching efficiency is less compared with that in an aqueous medium. It has been established that the quenching phenomenon is not affected by the transfer of electrons from the quencher to the dye molecule, and that collisional quenching plays the main role in this photochemical process.

引用

页码：39 / 44

页数：6

共 21 条

[1]

[Anonymous], 2020, SURFACTANT SCI TECHN

[2]

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