Abstract
Absorbance and fluorescence characteristics of a cyanine dye/phenanthrene derivative are studied in the presence of β- and γ-cyclodextrin, Brij 35, cetyltrimethyl ammonium bromide (CTAB), and sodium dodecyl sulfate (SDS). The apparent association constant for the dye cyclodextrin complex is estimated with the use of Benesi-Hildebrand equations. Absorbance measurements are used to estimate the dimerization constant of the dye in aqueous solution.
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