▎ 摘　　要

NOVELTY - Preparing electro spinning nano fiber composite modified screen-printed electrode involves preparing electrostatic spinning nanometer fiber film polyamide 6-graphene (PA6-GR) by static spinning method, crushing PA6-GR and mixing with graphene and chitosan (GR-CTS) in organic solvent and stirring uniformly to obtain electro spinning nanofiber composite PA6-GR/GR-CTS. The PA6-GR/GR-CTS paste is applied on surface of screen-printed electrode and dried to obtain electro spinning nanofiber composite screen printing electrode. USE - Preparing electrospun nano fiber composite modified screen-printed electrode. ADVANTAGE - The method enables to prepare electro spinning nano fiber composite modified electrode which has good stability, large specific surface area and fast electron transfer rate, and is simple and robust to prepare and can be stored for long time, provides method for modification and function of printed electrode, and has broad application aspects in detection of electric student objects.