SIMULATION OF TITRATION CURVES INDICATED WITH 2 INDICATOR ELECTRODES (BIAMPEROMETRY)

A rigorous method to simulate titration curves with indication using t wo indicator electrodes (biamperometry) is presented. Computer simulat ions can be carried out for reversible as well as for irreversible sys tems. The different parameters like the area of the individual electro des, applied potential difference, heterogeneous rate constant, and th e kinetic parameter alpha were varied and investigated as to their inf luence upon the shape of the titration curves. The theoretically deriv ed effects match with the effects obtained by experiment. Considering the effects described here, it is possible to tailor the shape of the titration curve by the experimental conditions for specific applicatio ns in order to get an optimum shape at the end point of the titration.