▎ 摘　　要

NOVELTY - This utility model provides a three dimensional graphene lactic acid sensor, the sensor of the flexible substrate, working electrode, pair electrode and reference electrode and cover electrode surface and insulation slurry composed of the function layer is work electrode from bottom to top in turn by the following the third dimension, lactic acid oxidase, chitosan and glutaric dialdehyde composed of, wherein, the third dimension graphene is two-dimensional graphene assembly has 3D structure and, specifically is one kind of graphene nanometre sheet vertical to distribute in the base material of the graphene nano wall structure. The insufficient sensor three dimension graphene lactic acid sensor this utility new model supply and that of the convention lactic acid, the third dimension can electric conduction network structure and great ratio surface area and method of economic and environmental protection, simple and high efficient and quality controllable prepared graphene lactic acid sensor, and graphene nano wall is equal and the advantages of effective lifting of sensitivity for the detection and character when realize lactic acid, at the same time because of use of the flexible substrate, the sensor may use for medical treatment and public health health area.