▎ 摘　　要

Cyclodextrin polymer with chiral recognition function were selected as chiral selectors, and graphene materials with excellent performance were used to further amplify the difference in peak potential response, cyclodextrin polymeric membrane sensor based on graphene was constructed by layer modification. There was a significant difference in the peak potential response between two components of histidine enantiomer. The potential difference is nearly 100 mV. A good linear relationship was showed between the oxidation peak potential and enantiomeric excess of the mixed solution. The mixed solution consists of different ratios of two components histidine enantiomer. A new method for simultaneously identifying two components of histidine enantiomer by potential response can be established.