Macrokinetics of processes in glucose oxidase—peroxidase bienzyme systems when assaying glucose by the H2O2 reduction current: Effect of the enzyme ratio on the steady-state potential and H2O2 reduction current in glucose solutions of different concentrations

Abstract

The effect of the enzyme ratio on the steady-state potential and H2O2 reduction current at a bienzyme glucose oxidase-peroxidase electrode in glucose solutions of different concentrations is studied. The derived equations adequately describe the experimental data and allow one to estimate characteristics of bienzyme electrodes in the linear domain of the current variation with the glucose concentration and the system’s sensitivity