Simulation of titration curves indicated with two indicator electrodes (biamperometry) |
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Authors: | P. Surmann B. Peter C. Stark |
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Affiliation: | (1) Institut für Pharmazie der Humboldt-Universität Berlin, Goethestrasse 54, D-13086 Berlin, Germany |
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Abstract: | A rigorous method to simulate titration curves with indication using two indicator electrodes (biamperometry) is presented. Computer simulations can be carried out for reversible as well as for irreversible systems. The different parameters like the area of the individual electrodes, applied potential difference, heterogeneous rate constant, and the kinetic parameter were varied and investigated as to their influence upon the shape of the titration curves. The theoretically derived 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 applications in order to get an optimum shape at the end point of the titration. |
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