▎ 摘　　要

Self-assembled ultrathin films of diazoresin (DR)/graphene (GR) were formed on thioglycollic acid (TGA) decorated gold (Au) electrodes by photo-crosslinking. The electrochemical behavior of dopamine (DA) at the DR/GR modified electrodes was studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Under the optimal conditions, a sensitive DPV response to DA concentration was observed with the detection limit of 2.8 x 10(-9) M. Moreover, the modified electrodes exhibited good reproducibility and sensitivity, demonstrating its feasibility for the analytical purpose.