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Spectrophotometric and spectrofluorimetric study of Rose Bengal B and its reaction with platinum(IV)
Publikováno v:
The Analyst. 109:377-379
Aqueous solutions of Rose Bengal B contain four ionic species: H3R+ at Ho –4.75, pH 4.05. The pK for these equilibria in the pH zone are pK1= 3.51 and pK2= 4.05 and in the acid function (Hammet function) pKa1. Polymeric species and excimers have be