▎ 摘　　要

NOVELTY - A poly carbazole/nitrogen doped graphene modified electrode comprises glassy carbon electrode as substrate and electric conductive polymer, where the p-nitrophenol is detected by taking polycarbazole/nitrogen-doped graphene modified glassy carbon electrode placed into buffer solution with 4.6 pH value for 10 minutes, adding p-nitrophenol, using circulation voltammetry and detecting p-nitrophenol electrochemical response. USE - Poly carbazole/nitrogen doped graphene modified electrode for detecting p-nitrophenol. ADVANTAGE - The electrode has better synergistic effect, strong catalytic effect, better effect of increasing reduction potential, better reproducibility and better environmental stability, and can be prepared in a simple and rapid manner.