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Published on: October 23, 2012
Preparation of molecular imprinted film based on chitosan/nafion/nano-silver/poly quercetin for clenbuterol sensing
Chang Zhao1, Guan-Ping Jin2, Li-Li Chen2
1Anhui Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei 230009, PR China.
Abstract:
A useful molecular imprinted film (MIP-CNSQ/WGE) based on chitosan/nafion/nano-silver/poly quercetin compound was prepared by a compound electrochemical method at paraffin-impregnated graphite electrode for clenbuterol (CLB) sensing, which was characterised by means of field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy spectra (XPS), infrared spectra (IR) and electrochemical techniques to confirm the formation. The molecular imprinted film modified electrode was successfully applied to the determination of CLB with a reliable result. In optimum conditions, CLB at concentrations of 0.3-50.0μM could be determined with a detection limit of 0.01μM (3σ). Determination of CLB in practical samples of pork liver showed good recovery.
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