Study on the Interaction Between Verapamil Hydrochloride and Eosin Y by Absorption, Fluorescence and Resonance Rayleigh Scattering Spectra and Their Analytical Applications


In pH 2.8~3.6 HCl-NaAc buffer solution, eosin Y (EY) can react with verapamil hydrochloride(VP) to form a 1:1 ion-association complex, which not only causes the change of absorption spectra and the quenching of fluorescence, but also results in the great enhancement of resonance Rayleigh scattering (RRS). Furthermore, a new RRS spectrum with the maximum… (More)
DOI: 10.1007/s10895-010-0762-6


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