Alkanol effects on fluorescence quenching of Safranine T by thiourea in reverse micellar medium of Aerosol–O–T in heptane

The fluorescence characteristics of Safranine T (ST) (3,6-diamino-2,7-dimethyl-5 phenyl phenazinium chloride) in presence of thiourea have been studied in reverse micelles of Aerosol–O–T in heptane and in presence of alkanols. From the results of the fluorescence quenching of ST by thiourea the occu...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2001-08, Vol.186 (3), p.179-187
Main Authors: Nandi, Susantamay, Bhattacharya, Subhash C
Format: Article
Language:English
Subjects:
Alkanol
Fluoresecence quenching
Reverse micelle
Safranine T
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Summary:The fluorescence characteristics of Safranine T (ST) (3,6-diamino-2,7-dimethyl-5 phenyl phenazinium chloride) in presence of thiourea have been studied in reverse micelles of Aerosol–O–T in heptane and in presence of alkanols. From the results of the fluorescence quenching of ST by thiourea the occupancy number of the quencher in the reverse micelle (RM), and the binding constant of the quencher with the RM have been determined using Encinas–Lissi equation. The alkanols added are found to affect the quenching process.
ISSN:0927-7757
1873-4359
DOI:10.1016/S0927-7757(00)00822-0