The permselectivity of an anion-exchange membrane developed in our laboratory has been studied from membrane potential and membrane conductance measurements with the purpose to investigate its variation with electrolyte concentration. The possibility of prevention of reduction in the ion selective character of the membrane with increase in electrolytic concentration upon immobilization of cetyl pyridinium chloride and sodium lauryl sulfate has been explored. A correlation between the extent of immobilized surfactants and improvement in ion selectivity was found. Observations indicate that it is possible to manipulate permselective character of an anionic membrane by immobilization of suitable surfactant. The results have also been used to estimate phenomenological coefficients using non-equilibrium thermodynamics.