▎ 摘　　要

NOVELTY - A reduced graphene composite material, is obtained by functionalizing a graphene reduction compound with a chiral macrocyclic compound (I). USE - Reduced graphene composite material for use in electrochemical chiral sensor for identifcation and detection of tyrosine enantiomers (all claimed). ADVANTAGE - The sensor identifies and detects tyrosine enantiomers with fast response, high accuracy, high sensitivity, low detection limit, in simple and cost effective manner. DETAILED DESCRIPTION - A reduced graphene composite material, is obtained by functionalizing a graphene reduction compound with a chiral macrocyclic compound of formula (I). INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing reduced graphene composite material (2) an electrochemical chiral sensor.