An Electropolymerized Molecularly Imprinted Electrochemical Sensor for the Selective Determination of Bisphenol A Diglycidyl Ether

摘要

In this manuscript, a sensitive and selective molecular im- printed electrochemical sensor for the detection of bisphenol A diglycidyl ether (BADGE) in canned oil was developed. Using BADGE as template, pyrrole as functional monomer, after electropolymerization and elution processes, the molecular imprinted film for the special recognition of BADGE was prepared on the surface of platinum disk electrode. Every step in the experiment was verified by field emission scanning electron microscope (SEM), microscopic fourier transform infra- red spectroscopy (Micro-FTIR), cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The experimental param- eters in the assay were optimized, and the linear range of the MIP sensor was 0.05 μmoldm~(-3) to 10 μmoldm~(-3) with the detection limit of 0.04 μmoldm~(-3) based on S/N=3. The sensor was applied to edible oil samples for detection with a good accuracy, which could be used as a new strategy for sensitive, rapid, simple and cost-effective screening of BADGE.