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Reference type: Journal
Authors: Pan YH, Shang L, Zhao FQ, Zeng BZ
Article Title: A novel electrochemical 4-nonyl-phenol sensor based on molecularly imprinted poly (o-phenylenediamine-co-o-toluidine)-nitrogen-doped graphene nanoribbons-ionic liquid composite film.
Publication date: 2015
Journal: Electrochimica Acta
Volume: 151
Page numbers: 423-428.
DOI: 10.1016/j.electacta.2014.11.044
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0013468614022397

Abstract: A novel electrochemical sensor was presented for the determination of 4-nonyl-phenol (NP), which was constructed by molecularly imprinted polymer (MIP), nitrogen-doped graphene nanoribbons (NGNRs) and ionic liquid (IL). The NGNRs were prepared by unzipping multiwalled carbon nanotubes, followed by hydrothermal treatment with ammonium-NaOH solution. The MIP was prepared by electropolymerization at the NGNRs-IL composite film modified electrode, using NP as template, o-phenylenediamine and o-toluidine as copolymerization monomers. The resulting sensor MIP/NGNRs-IL/GCE showed good performance. Under the optimized conditions, the peak current was linear to NP concentration in the range from 0.04 to 6 μM. The sensitivity and detection limit were 3.4 μA/μM and 8 nM (S/N = 3), respectively. The electrochemical sensor was applied to the determination of NP in real samples and satisfactory results were obtained
Template and target information: 4-nonyl-phenol
Author keywords: 4-nonyl-phenol, molecularly imprinted polymer, nitrogen-doped graphene nanoribbons, Ionic liquid, electropolymerization

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