Abstract
The polarization properties of different materials suitable as an auxiliary electrode to create a galvanic sensor of hydrogen sulfide. The results of the research developed a two-electrode galvanic sensor for hydrogen sulfide air monitoring on the basis of the gas diffusion manganese oxide catalytically active electrode as a working electrode and auxiliary electrode based on manganese oxide (IV) brand EDM-2. Metrological characteristics are determined and conducted laboratory tests of the developed sensors that are highly selective in the oxidation of hydrogen sulfide in the presence of other renewable gases such as CO, H2, carbonyl compounds. In the range of measured concentrations, resolution, speed, stability characteristics over time developed a sensor responds sensors that are part of a unified series of range of NTUU «KPI».
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