▎ 摘　　要

NOVELTY - The method involves selecting graphene oxide in graphene-chitosan suspension drop coated on a clean glass carbon electrode surface. The coated surface is naturally dried to obtain a graphene/chitosan modified electrode as a working electrode. Differential pulse voltammetry to tetrachloride catechol and chlorine are measured to obtain graphene-chitosan suspension or graphite alkene-chitosan suspension. USE - Electrochemical method for measuring tetrachloride catechol and chlorine in graphene/chitosan modified electrode. DESCRIPTION OF DRAWING(S) - The drawing shows a graph illustrating an electrochemical method for measuring tetrachloride catechol and chlorine in graphene/chitosan modified electrode.