▎ 摘　　要

The electrochemical behavior of aspirin at a graphene modified glassy carbon electrode has been investigated using cyclic and differential pulse voltammetric techniques. The dependence of the current on pH, concentration and scan rate was investigated to optimize the experimental conditions for determination of aspirin. A plausible oxidation mechanism was proposed. Under the optimum conditions, the oxidation peak current was linearly proportional to the concentration of aspirin in the range from 1.00x10(-6) to 2.00x10(-4) M with a detection limit of 20.2nM. The proposed method was successfully applied to aspirin determination in pharmaceutical and real samples.