▎ 摘　　要

NOVELTY - A modified electrode comprises base electrode and cyclodextrin functionalized graphene composite coating encasing the base electrode, where the cyclodextrin functionalized graphene composite is a composite obtained by reacting allyl- beta -cyclodextrin with mercapto based graphene. USE - Modified electrode for use in electrochemical detection of methyl parathion (all claimed), and detecting organic pollutants in water and environmental monitoring. ADVANTAGE - The modified electrode has large specific surface area, rapid electron transfer rate and excellent supramolecular recognition and biocompatibility and is prepared in a simple and feasible manner at low cost and suitable for electrochemical detection of methyl parathion with high sensitivity in a simple manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing the modified electrode (2) a use of the modified electrode in electrochemical detection.