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Reference type: Journal
Authors: Rao W, Cai R, Yin YL, Long F, Zhang ZH
Article Title: Magnetic dummy molecularly imprinted polymers based on multi-walled carbon nanotubes for rapid selective solid-phase extraction of 4-nonylphenol in aqueous samples.
Publication date: 2014
Journal: Talanta
Volume: 128
Page numbers: 170-176.
DOI: 10.1016/j.talanta.2014.04.087
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914014003658

Abstract: In this paper, a highly selective sample clean-up procedure combining magnetic dummy molecular imprinting with solid-phase extraction was developed for rapid separation and determination of 4-nonylphenol (NP) in the environmental water samples. The magnetic dummy molecularly imprinted polymers (mag-DMIPs) based on multi-walled carbon nanotubes were successfully synthesized with a surface molecular imprinting technique using 4-tert-octylphenol as the dummy template and tetraethylorthosilicate as the cross-linker. The maximum adsorption capacity of the mag-DMIPs for NP was 52.4 mg g-1 and it took about 20 min to achieve the adsorption equilibrium. The mag-DMIPs exhibited the specific selective adsorption toward NP. Coupled with high performance liquid chromatography analysis, the mag-DMIPs were used to extract solid-phase and detect NP in real water samples successfully with the recoveries of 88.6-98.1%.
Template and target information: 4-tert-octylphenol, dummy template, 4-nonylphenol, NP
Author keywords: dummy template, Magnetic molecularly imprinted polymers, Solid-phase extraction, 4-Nonylphenol


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