The enzyme, tyrosinase, was immobilized inside carbon paste electrodes (CPE) for the analysis of thiol-containing compounds such as the reduced form of glutathione (GSH) and l-cysteine. The measuring principle of this sensor is based on the blocking of the substrate recycling process between the enzyme and the electrode. The current response is monitored at -0.050 V versus Ag/AgCl. At this low potential,...
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