Molecularly imprinted ionic liquid magnetic microspheres for the rapid isolation of organochlorine pesticides in environmental water

Journal of Separation Science
Fengxia QiaoHongyuan Yan

Abstract

A new type of molecularly imprinted ionic liquid magnetic microspheres was synthesized by aqueous suspension polymerization, using 4,4'-dichlorobenzhydrol as a dummy template, and 1-allyl-3-ethylimidazolium hexafluorophosphate and methacrylic acid as co-functional monomers. The results of morphology and magnetic property evaluation of the obtained microspheres demonstrated that it was monodispersed spherical, possessed a rough surface, and an outstanding magnetic property. Binding experiments revealed that it had a substantial adsorption capacity and strong recognition ability to organochlorine pesticides in aqueous solution. Then the microspheres were applied as an adsorbent of magnetic dispersive solid-phase extraction for selective recognition and rapid determination of organochlorine pesticides in environmental water. Under the optimum conditions, good linearity of the three types of organochlorine pesticides (dicofol, tetradifon and p,p'-dichlorodiphenyldichloroethane) was achieved in the range of 1.0-100 ng/mL (r ≥0.9994). The recoveries at three spiking levels were ranged from 82.6 to 100.4% with the relative standard deviations less than 6.9%. This article is protected by copyright. All rights reserved.

References

Nov 20, 2012·Talanta·Pedro Toledo NettoMary Rosa Rodrigues de Marchi
Jul 8, 2014·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Xiao-Lin RuanYong-Qiang Lai
Jun 20, 2015·Analytica Chimica Acta·M C García-Alvarez-CoqueS Carda-Broch
Dec 29, 2015·Bioresource Technology·Susana PeleteiroJuan Carlos Parajó

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Citations

Sep 25, 2019·Pharmaceutical Nanotechnology·Fatemeh Ganjeizadeh Rohani, Mehdi Ansari
Apr 14, 2018·Analytical and Bioanalytical Chemistry·Shuyao HuangGangfeng Ouyang
Sep 20, 2017·Journal of Separation Science·Kevin D ClarkJared L Anderson
Jan 5, 2018·Bulletin of Environmental Contamination and Toxicology·L Díaz de León-MartínezR Flores-Ramírez

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