Electrochemical method for detecting capsicin in food

The invention belongs to the technical field of electrochemical detection methods, and particularly relates to an electrochemical method for detecting capsicin in food. The electrochemical method for detecting capsicin in food comprises the following steps of synthesizing nitrogen oxide-doped graphene, preparing a carbon paste electrode, preparing a carbon paste electrode modified by the nitrogen oxide-doped graphene, preparing a standard solution, and drawing a standard curve. The electrochemical method has the advantages that the electrode preparation is simple, the operation is convenient and simple, the cost is low, and the sensitivity is high; the oxidation peak current and the capsicin concentration have a good linear relationship in the range of 10 to 1200mug/L; by using the carbon paste electrode as a substrate, the preparation is convenient and rapid, and the cost is low; the carbon paste electrode modified by the nitrogen oxide-doped graphene has good adsorbing property on the capsicin, and the sens