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Reference type: Journal
Authors: Liu Y, Zhu LH, Luo ZH, Tang HQ
Article Title: Fabrication of molecular imprinted polymer sensor for chlortetracycline based on controlled electrochemical reduction of graphene oxide.
Publication date: 2013
Journal: Sensors and Actuators B: Chemical
Volume: 185
Page numbers: 438-444.
DOI: 10.1016/j.snb.2013.05.044
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400513006175

Abstract: A molecular imprinted polymer (MIP) sensor was fabricated by directly eletropolymerizing monomer o-phenylenediamine in the presence of template chlortetracycline (CTC), based on controlled electrochemical reduction of graphene oxide (GO) at cathodic potentials. In comparison with GO, the reduced GO (RGO) increased the cyclic voltammetric peak currents of [Fe(CN)6]3-/[Fe(CN)6]4- redox pair by a factor of about 300%, which was influenced by the amount of used GO and the reduction time. Integrating the excellent response amplification of RGO and the special recognition of MIP, the new MIP sensor was used to detect CTC indirectly by using [Fe(CN)6]3-/[Fe(CN)6]4- redox pair as an electrochemical probe. The electrochemical performances of the sensor were evaluated with cyclic voltammetry and differential pulse voltammetry (DPV). The MIP sensor exhibited a wide-range linear correlation between the peak current variation (Δ I) of the DPV cathodic peak and the concentration of CTC in the range of 10.0-500.0 μM. The use of the RGO-based MIP sensor gave satisfactory results in the analysis of tap water and laboratory wastewater samples
Template and target information: chlortetracycline, CTC
Author keywords: molecular imprinted polymer, sensor, Graphene, Electrochemical reduction, Chlortetracycline

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