Electrochemical characteristics of the PVC-graphite solid-phase electrodes modified by compounds of the quinone-hydroquinone series

The electrode properties as well as the electrochemical and chemical polarization of a polyvinyl chloride-graphite conductor modified with reversible redox compounds of the quinone-hydroquinone series are studied. The region of the hydrogen-function realization and stability under the action of the electrochemical and chemical polarizations are shown to depend on the nature of the substituents in the ring of the quinoid structure used. Some of the systems studied are suggested as the electroactive material for producing solid-phase pH-metric electrodes.