Optical and voltammetric detection of a coupled chemical reaction after the transfer across a liquid ∣ liquid interface

The transfer processes of an ion across a liquid ∣ liquid interface coupled to different kinds of chemical reactions taking place in the organic phase were simulated by the explicit differences method. A set of parameters (species charge, kinetic constants, reaction orders and molar absorptivities) was chosen for each reaction taking account their physical meaning. The interfacial absorbance at a given wavelength in a total internal reflection mode and the voltammetric responses were simulated in order to extract kinetic and thermodynamics parameters.