Ionic Equilibria of Fluorophores in Organized Solutions: The Influence of Micellar Microenvironment on Protolytic and Photophysical Properties of Rhodamine B

@article{MchedlovPetrossyan2003IonicEO,
  title={Ionic Equilibria of Fluorophores in Organized Solutions: The Influence of Micellar Microenvironment on Protolytic and Photophysical Properties of Rhodamine B},
  author={Nikolay O Mchedlov-Petrossyan and Natalya A. Vodolazkaya and Andrey O. Doroshenko},
  journal={Journal of Fluorescence},
  year={2003},
  volume={13},
  pages={235-248}
}
AbstractIonic equilibria and fluorescence decay of rhodamine B were studied in micellar solutions of sodium n-dodecyl sulfate (SDS) with various additives (NaCl, pentanol-1, crown ether, and tetra-n-butyl ammonium salt), and five nonionic surfactants (Brij 35, nonyl phenol 12, Triton X-100, Triton X-305, Tween 80), as well as in β-cyclodextrin solutions. The apparent dissociation constants, $$K_a^a$$ , of rhodamine B (HR+ ⇄ R + H+) were obtained. The distribution of the dye species HR+ and R… CONTINUE READING

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