Preparation method and detection method of novel electrochemical regulation and control electrochemical sensor for carbaryl pesticide

The invention belongs to the technical field of analysis and detection, and relates to a preparation method and a detection method of a novel electrochemical regulation and control electrochemical sensor for carbaryl pesticide. The sensor is prepared based on a three-electrode system, that is, a platinum wire electrode is used as a counter electrode, a silver/silver chloride electrode is used as a reference electrode, and the modified electrode prepared by the scheme is used as a working electrode; the three-electrode system is soaked in the solution, and electrochemical regulation and subsequent detection are carried out through an electrochemical workstation. According to the carbaryl electrochemical sensor designed by the invention, the sensitivity is as high as 4.2 * 10 < 3 > mu A.mu M . Cm , the linear range is 0.2-30.0 mu M, meanwhile, an analyte is derived by utilizing an electrochemical regulation and control technology, so that the carbaryl electrochemical sensor has good selectivity in sim