The product of ODA oxidized by H 2O 2 with presence of HRP can be reduced at -0.31 V (vs.Ag/AgCl) on glass carbon electrode and the differential pulse voltammetry (DPV) was chosen to detect the enzymatic-generated product.

• HRP能够催化 H2 O2 氧化 ODA；其反应产物在玻碳电极上 - 0 .；31 V ( vs