Abstract

An oxidative peak in the cathodic scan is observed in the cyclic voltammetry of glucose at gold electrodes, its peak current density being proportional to glucose concentration in a wide potential range. The application of this phenomenon in blood glucose sensing has been hindered by the presence of inhibitors: the most problematic are chlorides due to their high concentration and difficult separation from glucose. In the present paper we propose a solution to this problem involving a three electrode, four step pulsed electrochemical detection technique.

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