▎ 摘　　要

NOVELTY - Non-enzyme electrochemical sensor comprises a reaction tank, a working electrode set in the reaction tank, an auxiliary electrode and a reference electrode, constructing a three-electrode system by the working electrode, the auxiliary electrode and the reference electrode, performing trace detection to the glutamic acid in the solution to be tested in the reaction tank, where the working electrode is a carbon-based electrode whose surface is modified with nickel oxide-reducing graphene oxide nano material. USE - Non-enzymatic electrochemical sensor for detecting concentration of glutamic acid in biological and medical applications. ADVANTAGE - The sensor detects the low concentration of glutamic acid in the sample by non-enzyme electrochemical sensing mode, realizes higher current response so as to realize the purpose of trace detection of glutamic acid, and provides a very cheap and fast method for trace detection of glutamic acid in biological and medical application field, which is worthy of popularization. DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for detecting concentration of glutamic acid. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the non-enzyme electrochemical sensor for detecting concentration of glutamic acid.