Modification of Carbon Paste Electrode with Hemin/Polypyrrole for Nitrite Determination in Drinking Water
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Abstract
In this work, an electrochemical nitrite sensor was developed by electropolymerization of Hemin/Polypyrrole films on carbon paste electrode (Hm/PPy-CPE). The modified electrode was characterized and used for nitrite determination of drinking water with the working range and detection limit of 0.5 to 25.0 mg/L and 0.1 mg/L, respectively. The result was achieved with highly sensitive, easy, and rapid for nitrite determination. Therefore, this technique was suitable for apply for nitrite monitoring in drinking water.
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