Abstract
AbstractBrilliant cresyl blue (BCB), one of the phenoxazine dyes, was electropolymerized on the glassy carbon (GC) electrode. The resulting electroactive polymer film could provide more active sites for anodic oxidation of nitrite, based on which a novel nitrite sensor was developed. The optimized fabrication and sensing conditions were investigated. This sensor exhibited high sensitivity, low detection limit and simple operation toward the electrochemical oxidation of nitrite. It was successfully applied to the determination of nitrite in some food samples and the results were consistent with those obtained with the standard spectrophotometric procedure.
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