▎ 摘　　要

An ionic liquid functionalized graphene film was prepared and PdAu nanoparticles (NPs) were electrodeposited on it. The PdAu NPs were characterized by various methods and they showed the features of alloys. In 0.2M H2SO4 solution, oxalic acid (OA) exhibited a sensitive anodic peak at the resulting electrode at about 1.1V (vs. SCE), and the peak current was linear to OA concentration in the range of 5100 mu M with a sensitivity of 45.5 mu A/mM. The detection limit was 2.7 mu M (S/N=3). The electrode was successfully applied to the determination of OA in real sample.