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Reference type: Journal
Authors: Yang GM, Chen XL, Pan QS, Liu W, Zhao FQ
Article Title: A Novel Photoelectrochemical Sensor for Thiamphenicol Based on Porous Three-Dimensional Imprinted Film.
Publication date: 2017
Journal: International Journal of Electrochemical Science
Volume: 12
Issue: (7)
Page numbers: 7272-7286.
DOI: 10.20964/2017.08.34
Alternative URL: http://www.electrochemsci.org/papers/vol12/120807272.pdf

Abstract: In this study, we designed a novel photoelectrochemical (PEC) sensor for thiamphenicol (TAP), which based on porous graphene (P-r-GO), MoS2 nanoflower, dendritic Pt-Pd NPs (Pt-Pd NPs), amino multiwalled carbon nanotubes (NH2-MWCNTs), molecularly imprinted polymer (MIP) and L-shape glassy carbon electrode (L-GCE). Firstly, MoS2 and P-r-GO nanoflower composite was prepared by one-step hydrothermal method. Then, this composite suspension was coated on L-GCE surface to virtually form a porous interface. After that, the suspension of Pt-Pd NPs and NH2-MWCNTs was dropped onto MoS2-P-r-GO / L-GCE. Subsequently, TAP was imprinted on above modified electrode by cyclic voltammetry as o-phenylenediamine was monomer. Afterwards, ascorbic acid was selected as a photocurrent probe when TAP was removed from MIP film and adsorbed on sensing surface. The resulting PEC sensor possessed excellent response for TAP, and its linear range was 1.0 x 10-9 ~ 3.5 x 10-6 mol L-1 with the detection limit of 5.0 x 10-10 mol L-1 . This sensor was used to determine TAP in real food samples with favorable results.
Template and target information: thiamphenicol, TAP
Author keywords: Photoelectrochemical sensor, Thiamphenicol, Porous graphene, MoS2, molecularly imprinted polymer

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