▎ 摘　　要

Herein we report the electroanalytical determination of 4-nitrophenol (4-NP) using glassy carbon electrode and graphene modified glassy carbon electrode. Glassy carbon electrode (GCE) does not show a peak corresponding to the electrooxidation. of 4-NP whereas the commercial graphene (CG) modified glassy carbon electrode (CG/GCE) exhibits an oxidation peak at 0.10 V corresponding to the oxidation of 4-nitrophenol. From cyclic voltammetric studies, it is observed that the sensitivity of graphene modified glassy carbon is two-fold higher than that of glassy carbon electrode.