▎ 摘　　要

NOVELTY - An imidacloprid detecting method involves preparing PPy/RGO modified glassy carbon electrode by adding pure pyrrole monomer (PPy) with graphene oxide dispersion (RGO) and sonicating to obtain a mixed solution. The glassy carbon electrode is placed in mixed solution to obtain glassy carbon electrode polypyrrole/graphene oxide, and the oxide is placed in phosphate buffer solution to obtain PPy/RGO modified glassy carbon electrode. The obtained electrode is placed in a buffer solution, the nitrogen followed by differential pulse voltammetry for electrochemical response of imidacloprid. USE - Method for detecting imidacloprid. ADVANTAGE - The method enables detecting imidacloprid with high sensitivity, good stability, wide linear range and low detection limits. DETAILED DESCRIPTION - An imidacloprid detecting method involves preparing PPy/RGO modified glassy carbon electrode by adding pure pyrrole monomer (PPy) with graphene oxide dispersion (RGO) and sonicating for half an hour to obtain a mixed solution containing pyrrole monomer and graphene oxide. The glassy carbon electrode is placed in a clean preparation of the mixed solution, with the potential range of -0.2-1.0 V 5-30 rings of polymerization of cyclic voltammetry, scan rate of100 mV/second, to obtain glassy carbon electrode polypyrrole/graphene oxide, and the oxide is placed in modified phosphate buffer solution at pH 7, volt-ampere scanning of 5-10 circles, scanning rate of 100 mV/s, to obtain PPy/RGO modified glassy carbon electrode. The obtained PPy/RGO modified electrode is placed in a buffer solution of pH 2.8-7.5, the nitrogen for 5-20 minutes, followed by adding a certain amount of imidacloprid, using cyclic voltammetry scanning speed of 100-200 mV/second and differential pulse voltammetry for electrochemical response of imidacloprid.