Inventors: Shen HY, Chen Y, Zhang JL, Xie SY, Yang J, Hu MQ, Dong XY, Xia QH
Patent Title: Magnetic field-induced preparation method of molecularly-imprinted magnetic enrichment material of trace quantity of chlorophenol pollutant molecules in seawater
Publication date: 2014
Publication number: CN104130441

Abstract: The invention discloses a magnetic field-induced preparation method of a molecularly-imprinted magnetic enrichment material of trace quantity of chlorophenol pollutant molecules in seawater. The preparation method comprises that under magnetic field induction, an epoxy group-functionalized magnetic polymer is prepared by suspension polymerization and in-situ oxidation, a chlorophenol environmental pollutant polyamine template molecule is obtained by an intermolecular hydrogen bonding self-assembling technology, an amino-functionalized magnetic molecularly-imprinted composite material bonding with the template molecule is prepared under magnetic field induction, and in the presence of an acid/alcohol extractant, through pH adjustment, the template molecule is eluted and the chlorophenol molecule-imprinted magnetic composite material is obtained. The preparation method has simple processes and a low cost and realizes uniform particle size distribution and stable properties of the desired product. The molecularly-imprinted magnetic enrichment material can realize high-efficiency and high-selectivity adsorption and removal of trace quantity of chlorophenol pollutants in seawater and can be used for base dispersion-magnetic solid phase extraction detection of trace quantity of chlorophenol pollutants in seawater.
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