Abstract

Abstract An amperometric mediated sensor for lactate is described. The sensor is based on tetrathiafulvalene (TTF) in Eastman-AQ gel as an electron transfer between immobilized lactate oxidase and a glassy carbon electrode. The effects of oxygen, applied potential, and pH on steady-state electrocatalytic oxidation of lactate at the sensor are evaluated. The response of the sensor to lactate under N2 saturation reaches 95% steady-state current within 40 s.

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