In this paper, a novel electrochemical sensor with sensitive and selective binding sites for isocarbophos (ICP) detection is reported, which is based on a glassy carbon electrode (GCE) modified with molecularly imprinted terpolymer of poly(o-phenylenediamine-co-gallic acid-co-m-aminobenzoic acid) (p(PD-GA-ABA)) templated with ICP. The surface feature of the p(PD-GA-ABA) modified GCE (MIP/GCE) was characterized by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). Several important parameters controlling the performance of the MIP/GCE...