FLUORESCENCE POLARIZATION ANISOTROPY AS A NOVEL TOOL FOR THE DETERMINATION OF CRITICAL MICELLAR CONCENTRATIONS

Authors
CHAUDHURI R GUHARAY J SENGUPTA PK
Citation
R. Chaudhuri et al., FLUORESCENCE POLARIZATION ANISOTROPY AS A NOVEL TOOL FOR THE DETERMINATION OF CRITICAL MICELLAR CONCENTRATIONS, Journal of photochemistry and photobiology. A, Chemistry, 101(2-3), 1996, pp. 241-244
Citations number
21
Categorie Soggetti
Chemistry Physical
Journal title
Journal of photochemistry and photobiology. A, Chemistry → ACNP
ISSN journal
10106030
Volume
101
Issue
2-3
Year of publication
1996
Pages
241 - 244
Database
ISI
SICI code
1010-6030(1996)101:2-3<241:FPAAAN>2.0.ZU;2-1
Abstract
A new technique is proposed for the estimation of critical micellar co ncentrations (cmcs) based on fluorescence polarization anisotropy (r) measurements as a function of surfactant concentration ([surf]). Repre sentative results are presented for Triton X 100 (TX 100), sodium dode cyl sulphate (SDS) and cetyl trimethyl ammonium bromide (CTAB). The fi rst and second cmc values (cmc1 and cmc2) obtained from break points i n r vs. [surf] plots are in reasonable agreement with existing literat ure data.