[JPS-Cover Story] Magnetic Molecularly Imprinted Polymers Synthesized via Surface-Initiated Reversible Addition-Fragmentation Chain Transfer Polymerization for Enrichment and Determination of Synthetic Estrogens in Aqueous Solution
writer：Fangfang Chen, Jingjing Zhang, Minjun Wang and Jie Kong*
keywords：Magnetic molecularly imprinted polymers，Synthetic estrogens，Reversible addition-fragmentation chain transfer polymerization，Water treatment
source：期刊
specific source：Journal of Separation Science, 2015, DOI: 10.1002/jssc.201500407 (Cover Story)
Issue time：2015年
Magnetic molecularly
imprinted polymers have attracted significant interest caused by their multifunctionality
of selective recognition of target molecules and rapid magnetic response. In
this contribution, the magnetic molecularly imprinted polymers
were synthesized via surface-initiated reversible addition addition-fragmentation
chain transfer polymerization using diethylstilbestrol as the template for enrichment of synthetic estrogens. The uniform
imprinted surface layer and the magnetic property of the magnetic molecularly
imprinted polymers favored a fast binding kinetics and rapid analysis
of target molecules. The static and selective binding experiments demonstrated
a desirable adsorption
capacity and good selectivity of the magnetic molecularly imprinted polymers in comparison to magnetic non-molecularly
imprinted polymers. Accordingly, a
corresponding analytical method was developed in which magnetic molecularly
imprinted polymers were employed as magnetic solid-phase extraction materials for the concentration
and determination of four synthetic estrogens (diethylstilbestrol,
hexestrol, dienestrol, and bisphenol A) in fish pond water. The
recoveries of these synthetic estrogens in spiked fish pond water samples ranged
from 61.2% to 99.1% with a relative standard deviation of lower than 6.3%. This
study provides a versatile approach to prepare well-defined magnetic
molecularly imprinted polymers sorbents for the analysis of synthetic estrogens
in water solution.
全文鏈接：http://onlinelibrary.wiley.com/doi/10.1002/jssc.201500407/abstract