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

J Chromatogr A. 2009 Oct 30;1216(44):7546-52. doi: 10.1016/j.chroma.2009.06.011. Epub 2009 Jun 9.

Abstract

Using nanoattapulgite as matrix, both diethylstilbestrol surface molecularly imprinted polymer and non-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 28.50 mg 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 microg L(-1) and 15 microg kg(-1).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Diethylstilbestrol / chemistry*
  • Diethylstilbestrol / isolation & purification*
  • Fishes
  • Molecular Imprinting*
  • Polymers / chemistry*
  • Solid Phase Extraction / methods*

Substances

  • Polymers
  • Diethylstilbestrol