Spectroscopic investigations on the binding of ammonium salt of 8-anilino-1-naphthalene sulfonic acid with non-ionic surfactant micelles in aqueous media

The anionic dye 8-anilino-1-napthalensulfonic acid ammonium salt, or ANS, was used as a fluorescent probe to investigate the behaviour of dye-surfactant interactions in aqueous solutions of Triton X-100 and the Brij and polyoxyethylene tridecyl ether (POE TDE) series of polyoxyethylene non-ionic sur...

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Bibliographic Details
Published in:Fluid phase equilibria 2007-02, Vol.251 (2), p.110-113
Main Authors: Moore, Stephanie A., Harris, Adam A., Palepu, Rama M.
Format: Article
Language:English
Subjects:
Aggregation numbers
ANS
Applied sciences
Binding constants
Chemical industry and chemicals
Dyes, pigments
Exact sciences and technology
Industrial chemicals
Micelles
Non-ionic surfactants
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Summary:The anionic dye 8-anilino-1-napthalensulfonic acid ammonium salt, or ANS, was used as a fluorescent probe to investigate the behaviour of dye-surfactant interactions in aqueous solutions of Triton X-100 and the Brij and polyoxyethylene tridecyl ether (POE TDE) series of polyoxyethylene non-ionic surfactants. The fluorescence behaviour of the dye with the non-ionic surfactants was examined in micellar media. The concentration of surfactant was kept well above the cmc to investigate the interaction of the dye with surfactant micelles. In this investigation, the relative fluorescence enhancements, binding constants of the dye to the surfactant micelles and aggregation numbers of the micelles were determined, from the analysis of spectroscopic data.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2006.11.009