Abstract
Research has been carried out on the development of a biomimetic sensor of the catalase and peroxidase type to determine trace amounts of peroxide hydrogen and low concentrations of ethyl alcohol in an aqueous solution. By potentiometric research, the physicochemical feature of the catalase and peroxidase biomimetic sensor was studied, the transducer of which was Ag. Rapid and accurate determination of hydrogen peroxide is very important, but no less important side of this issue is associated with the determination of trace amounts of C2H5OH in aqueous media of various origins. The need to develop express methods for determining the concentration of C2H5OH in aqueous solutions follows from the requirements for the quality of wine and alcohol products. As you know, the taste and drinking qualities of the product depend on the ratio of methyl and ethyl alcohols. In this work, biomimetic sensors of the catalase and peroxidase types based on an Ag electrode were developed for determining trace amounts of hydrogen peroxide and ethanol. Biomimetic sensors of the catalase and peroxidase types based on an Ag electrode have been developed for the determination of microquantities of hydrogen peroxide and ethyl alcohol. The applicability of a biomimetic sensor for determining trace concentrations of hydrogen peroxide, as well as for determining microquantities of ethyl alcohol in an aqueous solution with a low detection limit, high sensitivity, wide recognition range, high stability, and repeated use, is shown. The developed and synthesized biomimetic sensor of the catalase and peroxidase types based on TPhPFe3+/Al2O3/Ag have high sensitivity, stability, and do not lose their activity for a long time
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