Abstract
New catalase- and peroxidase-type iron porphyrin biomimetic electrodes have been developed for determining ultralow concentrations of H2O2 and C2H5OH in aqueous solutions. Their physicochemical features have been studied. A mechanism of catalase and peroxidase reactions was suggested. Biomimetic electrodes did not lose their activity for a long time under the action of the oxidant, intermediates, and the final products of the decomposition of H2O2. Potentiometric biomimetic sensors of catalase and peroxidase types have been designed and studied.
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