▎ 摘　　要

A voltammetric sensor for polydatin sensing was simply fabricated by in-situ electrochemically reducing graphene oxide at a glassy carbon electrode. The redox behavior of polydatin was investigated systematically. For the first time, the kinetics parameters of electrode reaction of polydatin were calculated using various electro-chemical techniques. Significant electrochemical signal increases were achieved by the excellent conductivity and large surface area of reduced graphene oxide. Thereafter, a highly-sensitive electroanalytical method for polydatin was established with a good linear relationship from 4.0 x 10(-8) mol L-1 to 3.5 x 10(-8) mol L-1 and a detection limit of 4.0 x 10(-8) mol L-1. In addition, the practical application of present method was demonstrated by determining the concentration of polydatin in real sample with satisfactory result. (C) 2016 Elsevier B.V. All rights reserved.