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Reference type: Journal
Authors: Yuan ZG, Liu YZ, An FQ
Article Title: Preparation and phenol-recognizing ability of a poly(methacrylic acid) molecular imprint on the surface of a silica gel.
Publication date: 2011
Journal: Microchimica Acta
Volume: 172
Issue: (1)
Page numbers: 89-94.
DOI: 10.1007/s00604-010-0461-7
Alternative URL: http://www.springerlink.com/content/k4n4r37131712534/

Abstract: Molecularly imprinted solid phase extraction is an excellent tool for the preconcentration of trace analytes. We report on the preparation of such a material by firstly graft-polymerizing methacrylic acid onto the surface of silica gel particles, and then imprinting it by using phenol as a template and ethylene glycol diglycidyl ether as a crosslinker. The binding and recognition of phenol were examined by static methods. The binding capacity at saturation is 160 mg g -1 in 9 h at pH 6. The selectivity coefficients relative to o-cresol and chlorophenol are 22 and 23, respectively. The pH value has a large effect. Adsorbed phenol can be eluted easily from the imprint with diluted sodium hydroxide solution, and the material is reusable
Template and target information: phenol
Author keywords: Surface molecular imprinted polymer, Recognizing ability, Reusability property, phenol, silica gel


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