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Reference type: Journal
Authors: Tahmasebi Z, Davarani SSH, Asgharinezhad AA
Article Title: An efficient approach to selective electromembrane extraction of naproxen by means of molecularly imprinted polymer-coated multi-walled carbon nanotubes-reinforced hollow fibers.
Publication date: 2016
Journal: Journal of Chromatography A
Volume: 1470
Page numbers: 19-26.
DOI: 10.1016/j.chroma.2016.09.067
Alternative URL: http://www.sciencedirect.com/science/article/pii/S002196731631305X

Abstract: In this work, a novel microextraction technique using molecularly imprinted polymer-coated multi-walled carbon nanotubes (MIP-MWCNTs) in electromembrane extraction (EME) procedure is described. The method in combination with HPLC-UV was utilized to determine naproxen, as an acidic model drug, in urine, plasma and wastewater samples. For this purpose, MIP-MWCNTs were placed in the pores of polypropylene hollow fiber. The MIP-MWCNTs-EME method has the advantages of high selectivity and cleanup of MIP along with high enrichment ability of the EME in a single step extraction. Continuing with the research, optimization of the factors affecting the migration of naproxen from sample solutions to MIP-MWCNTs sites and then into the lumen of hollow fiber was explored. Under the optimized conditions, the limit of detection (LOD) of the developed method was calculated to be 0.3 μg L-1. All relative standard deviations (RSDs) were lower than 3%. Linearity of the method was obtained within the range of 1-1000 μg L-1 with the coefficient of determination (r2) being higher than 0.999. Under the optimized conditions, an extraction recovery of 66% was obtained, which corresponded to a preconcentration factor of 88. Finally, the developed method was satisfactorily used to determine naproxen in urine, plasma and wastewater samples
Template and target information: naproxen
Author keywords: Molecularly imprinted polymer coated multiwalled carbon nanotubes, Electromembrane extraction, selective extraction, naproxen, plasma and urine samples

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