▎ 摘　　要

NOVELTY - Preparing sensor material based on perylene diimide involves reacting tetrachloro-3,4,9,10-perylene tetracarboxylic dianhydride and long chain primary amine to obtain alkyl chain as end group of perylene dimide compound, reacting compound with molecule with hydroxyl or sulfydryl to obtain sensing probe with terminal group and side chain group, and adsorbing sensing probe on carbon-based inorganic conductive semiconductor material by non-covalent interaction to collect to obtain sensor material. USE - Method for preparing sensor material based on perylene diimide used for detecting electrochemical sensing in methamphetamine, where lower limit of detection is 0.1 ppb (all claimed); used for detecting and analyzing abuse of drugs. ADVANTAGE - The method enables to prepare multi-functional group-modified perylene diimide derivative and methyl amphetamine gas molecule effect, where adsorption of perylene dimide derivatives to methyl amphetamines reflects change of electrical signal, sensor material of sensor realize high sensitivity and specific sensing of methyl ampethylamine gas with ultra-low concentration, and realizes fast detection of methamine gas with low concentration, solves sensing function of drug detection and early warning, and has important application value in drug trafficking and earlier warning aspect. DESCRIPTION OF DRAWING(S) - The drawing shows a structural schematic view of perylene diimide derivative molecule, modified in perylene diimide end group and side chain group.