Voltammetric Determination of Thiuram by Carbon Paste Electrodes Modified with Molecular Imprinted Polymers

Molecular imprinting has become a powerful tool for the preparation of three dimensional polymeric materials with special recognition ability. The three dimensionally cross-linked polymeric materials are obtained by polymerization of functional monomers in the presence of template molecule. Then, leaching of template molecules by a leaching procedure generates the recognition cavities complementary to the shape, size and functional groups of the template molecules. Thus, molecularly imprinted polymers are often used because of their stability, their resistance to temperature and pressure, resistance to effects of the chemicals and their re-use, as well as their selective properties against template molecule. Nowadays, molecular imprinting technique has been successfully assembled with a several of analytical techniques in chromatography, sensor etc. In this study, thiuram imprinted microbeads were synthesized and characterized by Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). A carbon paste electrode (CPE) was modified with thiuram molecular imprinted polymer (MIP) and used for the determination of thiuram in active substance of pesticide sample by Differential Pulse Voltammetry (DPV)