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Reference type: Journal
Authors: Narula P, Kaur V, Singh R, Kansal SK
Article Title: Development of molecularly imprinted microspheres for the fast uptake of 4-cumylphenol from water and soil samples.
Publication date: 2014
Journal: Journal of Separation Science
Volume: 37
Issue: (22)
Page numbers: 3330-3338.
DOI: 10.1002/jssc.201400719

Abstract: Molecularly imprinted microspheres containing binding sites for the extraction of 4-cumylphenol have been prepared for the first time. The imprinted microspheres were synthesized by a precipitation method using 4-cumylphenol as a template molecule, methacrylic acid as a functional monomer and divinylbenzene-80 as a cross-linker for polymer network formation. The formation and the morphology of molecularly imprinted microspheres were well characterized using infrared spectroscopy, thermogravimetric studies, and scanning electron microscopy. The Brunauer-Emmett-Teller analysis revealed the high surface area of the sorbent indicating formation of molecularly imprinted microspheres. The developed microspheres were employed as a sorbent for the solid-phase extraction of 4-cumylphenol and showed fast uptake kinetics. The sorption parameters were optimized to achieve efficient sorption of the template molecule, like pH, quantity of molecularly imprinted microspheres, time required for equilibrium set-up, sorption kinetics, and adsorption isotherm. A standard method was developed to analyze the sorbed sample quantitatively at 279 nm using high-performance liquid chromatography with diode array detection. It was validated by determining target analyte from synthetic samples, bottled water, spiked tap water, and soil samples. The prepared material is a selective and robust sorbent with good reusability
Template and target information: 4-cumylphenol
Author keywords: 4-Cumylphenol, microspheres, molecular imprinting, Precipitation methods, Xenoestrogen


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