▎ 摘　　要

NOVELTY - The method involves preparing graphite-oxide (GO) water solution, and preparing pure glassy carbon (GC) electrode. A pure-GC glassy carbon electrode is grinded by 0.3 microns of aluminum powder. 10uL GO solution dropping surface of the GC electrode is dropped. The electrode is dried to obtain a graphene modified glassy carbon electrode at room temperature. A volt-ampere curve is recorded in a process of circulation for first time. USE - Graphene modified electrochemical sensor electrode preparation method. ADVANTAGE - The method enables maintaining graphene modified electrochemical sensor electrode with high sensitivity and better stability, and applying electrode to detect nitrogen contain in oxide. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation illustrating a graphene modified electrochemical sensor electrode preparation method.