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Reference type: Journal
Authors: Bougrini M, Florea A, Cristea C, Sandulescu R, Vocanson F, Errachid A, Bouchikhi B, El Bari N, Jaffrezic-Renault N
Article Title: Development of a novel sensitive molecularly imprinted polymer sensor based on electropolymerization of a microporous-metal-organic framework for tetracycline detection in honey.
Publication date: 2016
Journal: Food Control
Volume: 59
Page numbers: 424-429.
DOI: 10.1016/j.foodcont.2015.06.002

Abstract: Electrochemical sensor for the detection of tetracycline, based on a gold electrode surface modified with a molecularly imprinted polymer microporous-metal-organic framework, is described. Imprinted gold nanoparticles composites are assembled on Au surfaces by the electropolymerization of p-aminothiophenol functionalized gold nanoparticles in the presence of the imprint molecule. The electrochemical sensor was characterized by linear sweep voltammetry in the presence of hexacyanoferrate/hexacyanoferrite as redox probe. In order to achieve optimal preconcentration, the influence of various parameters such as extraction and incubation times, washing and eluting solutions was evaluated. The sensor showed a linear range from 224 fM to 22.4 nM and a limit of detection of 0.22 fM. The proposed method was successfully applied to determine tetracycline in honey. The recoveries of tetracycline are in the range of 101.8% - 106.0 % with an RSD 8.3%
Template and target information: tetracycline
Author keywords: Electrochemical sensor, molecularly imprinted polymer, electropolymerization, gold nanoparticles, Tetracycline, Honey


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