Novel molecularly imprinted polymer prepared by nanoattapulgite as matrix for selective solid-phase extraction of diethylstilbestrol

Using nanoattapulgite as matrix both diethylstilbestrol Surface molecularly imprinted polymer and imprinted polymer were synthesized in this work Compared with each other, the diethylstilbestrol surface molecularly imprinted polymer IS Superior to non-imprinted polymer in adsorption capacity, selectivity and mass transfer property The maximum static adsorption capacities of diethylstilbestrol surface molecularly imprinted polymer, non-imprinted polymer and nanoattapulgite for diethylstilbestrol was 105.14. 78.54 and 28 50mg g(-1). respectively. As the packing material of solid-phase extraction, the diethylstilbestrol surface molecularly imprinted polymer has been applied to concentrating diethylstilbestrol in pond water and fish samples, A corresponding analytical method to determine diethylstilbestrol has been developed. The limit of detection for diethylstilbestrol in pond water sample and fish samples were 3 mu Lg L-1 and 15 mu g kg(-1). (C) 2009 Elsevier B.V. All rights reserved.