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Abstract: The preparation and properties of electrosynthesized poly-(o- aminophenol) (iPoAP) as a molecular imprinting material were studied by in situ quartz crystal impedance method. During the polymerization, the changes of Deltaf(0), DeltaR(1) and DeltaC(0) were investigated based on the Butterworth-Van Dyke model. The thickness shear mode acoustic sensor modified with this material exhibited molecular recognition ability to the template molecule of 2,4-dichlorophenoxyacetic acid, although the specificity was not its good as that of the molecularly imprinted polymer prepared by traditional imprinting technology. In the range of 4.0 x 10(-5) to 2.0 x 10(-3) M, a linear relationship between the frequency shift (-Deltaf(0)) and log C was found from calibration Curve. The determination limit was 1.0 x 10(-5) M. Using this electropolymerization technology, the preparation of sensor was very simple and the reproducibility of preparation was very good
Template and target information: 2,4-dichlorophenoxyacetic acid, 2,4-D