A ZIF-8 Electrode Immobilizing Enzyme for Detection of Glucose Solution in Food

Abstract:

[Objective]The aim was to construct an electrochemical sensor based on a metal-organic framework-modified electrode for the highly sensitive detection of glucose solution in beverages.[Method]An electrochemical sensor based on ZIF-8 composite carbon nanotubes and immobilizing glucose oxidase (GOx) was prepared by in-situ synthesis and immobilized enzyme technology. The microstructure and morphology of the material were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis spectroscopy, and infrared spectrometry (IR). The electrochemical performance of the electrode immobilizing enzyme was tested by electrochemical workstation.[Result]The prepared electrode immobilizing enzyme showed excellent detection performance for glucose solution, with a limit of detection being 1.395 μmol/L.[Conclusion]The sensor has a good application prospect in the field of food detection.