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Reference type: Journal
Authors: Yuan LH, Ma J, Ding MJ, Wang S, Wu XL, Li Y, Ma KF, Zhou XM, Li F
Article Title: Preparation of estriol-molecularly imprinted silica nanoparticles for determining oestrogens in milk tablets.
Publication date: 2012
Journal: Food Chemistry
Volume: 131
Issue: (3)
Page numbers: 1063-1068.
DOI: 10.1016/j.foodchem.2011.09.090
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0308814611013677

Abstract: In this paper, the molecularly imprinted polymer layer of estriol at the silica nanoparticles surface with selective recognition had been constructed. The methacryl groups of functional monomer at the silica nanoparticles surface were acted as reactive sites to induce imprinting polymerisation. The absorption capacity results showed that the molecularly imprinted polymers had an excellent combining affinity, recognition selectivity and fast kinetics. Furthermore, the molecularly imprinted polymers were successfully used as absorbent of dispersive solid-phase extraction coupled with high-performance liquid chromatography to determinate trace estriol and estradiol in milk tablets. The high recoveries yielded of 89.1-93.5% were achieved with the relative standard deviations less than 9.4%. So, the molecularly imprinted polymers are the effective absorbents for the separation and enrichment of oestrogens in the complex matrices samples
Template and target information: estriol, estradiol, oestrogens
Author keywords: Estriol, Oestrogens, silica nanoparticles, Molecularly imprinted polymers, Dispersive solid-phase extraction, Milk tablets

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