“Kinetic analysis of a two-phase EC mechanism coupled with concomitant lateral processes”.

M.A.FERNANDEZ; L.M.YUDI; A.M. BARUZZI

ELECTROANALYSIS

Wiley-VCH

Año: 2004 vol. 16 p. 491 - 491

1040-0397

lectrochemical transfer of azo dye fast red TR across the water / 1,2-dichloroethane (DCE) interface followed by the coupling reaction with 1-naphthylamine in the organic phase is studied. Pseudo first order rate constant of this reaction were obtained by fitting the experimental Ip(-)/Ip(+) ratio under different experimental conditions with the theoretical values reported by Nicholson and Shain. The occurrence of lateral processes is demonstrated (partition of the azo dye non assited by potential and electrochemical transfer of the protons generated in the coupling reaction), which constrains the accurate determination of the kinetic parameters