▎ 摘　　要

Electrochemiluminescence (ECL) of Ru(bpy)(3)(2+) at chemically converted graphene (CCG)-modified glassy carbon (GC) electrode has been employed for the determination of melamine. It gave a linear response (R-2 = 0.99) for melamine concentration from 1.0 x 10(-1)5 mol L-1 to 1.0 x 10(-11) mol L-1 with a remarkable detection limit of 1.0 x 10(-15) mol L-1 in 0.1 mol L-1 phosphate buffer (pH=10). This is much lower compared to other detection methods. To check its applicability, the proposed method was employed for the determination of melamine spiked into the milk samples, and a detection limit of 5.0 x 10(-15) mol L-1 was achieved with good reproducibility and stability. All these results provide a possibility to develop an ECL method for the determination of melamine at the chemically converted graphene (CCG)-modified GC electrode.