▎ 摘　　要

There is an easily accessible and low cost approach to generating nitrogen-doped graphene (NG). This method is shown through the combination of high exfoliation speed and covalent metamorphose from the melamine (MA)-graphene oxide (GO) mixture. NGs processed during the temperature of 300, 600, and 900 degrees C featured X-ray photoelectron spectroscopy (XPS) in a systematic way. As for XPS, graphitic-N, pyridinic-N, as well as pyrrolic-N and are regarded to be three major nitrogen-doped frameworks with different proportions. NG modified GCE exerted a strengthening influence on the electrochemical oxidation process. After optimization, the anodic ultimate current of maltol react was in accordance with its concentration ranging from 0.05 mu M to 70 mu M, along with the detection limit of 0.02 mu M, has been obtained.