A new numerical simulation method---finite analytic (FA) method was introduced in this paper. The two-dimensional diffusion problems at microdisk electrode were studied and the reversible and quasi-reversible chronoamperometric responses were simulated. The experiments of reversible chronoamperomtry were carried out and the experimental results were in good agreement with the simulated ones.

Key words: POTASSIUM CHLORIDE, POTASSIUM FERROCYANIDE, MICROELECTRODE, NUMERICAL SIMULATION, FINITE ELEMENT ANALYSIS