Fluorescence Spectrometric Study of Mercurochrome Dye – Surfactant Interactions

DOI : http://dx.doi.org/10.13005/msri/030210

Download this article as: 

The fluorescence properties of an anionic dye, mercurochrome (of xanthene series) solubilized in the surfactant micelles in aqueous media is studies with the help of fluorescence spectroscopy. The fluorescence peak height at 530 nm decreases on increasing the concentration of surfactant reaching a limiting value. At room temperature emission of mercurochrome in surfactant micelles shows a significant, red shifts compared with that in pure water. Quantum yield measurements were also made at different concentration of the surfactants, using anthracene as the standards. Stokes shift was also measured at different concentration of the solutions. The decrease in flouroscence intensity is due to interaction between the surfactant micelles and the dye molecules which cause the aggregationof monomeric form of the dye molecules into its dimeric or polymeric form. The result has been attributed to micelle formation action of surfactants and the dye surfactants interactions.

Fluorescence; mercurochrome; aggregation and micellar media