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Synthesis and absorption performance of core-shell magnetic polymers for solid phase extraction and detection of glibenclamide in hypoglycemic health products

Abstract

Core-shell magnetic polymers were prepared by using acrylic acid (AA) as functional monomer, ethyleneglycol dimethacrylate (EGDMA) as cross-linking agent, and Fe3O4@GO@SiO2-OH nano particles as the magnetic core. The core-shell materials was investigated by scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FT-IR), vibrating sample strong magnetic analysis (VSM), thermogravimetric analysis (TGA) and re-binding experiments. The results showed that the core-shell materials has a fast adsorption equilibrium and nice adsorption capacity. The core-shell materials can be applied to the enrichment and determination of glibenclamide in hypoglycemic health products with the recoveries of spiked samples ranging from 80.02% to 87.28%, and the RSD was ≤1.97%. The durability test shows that the core-shell materials can be reused more than 3 times by re-binding experiments. By using an external magnetic field, the absorbed analytes were efficiently separated, so it is a promising method to conveniently detect the illegal addition of glibenclamide in hypoglycemic health products.

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Publication details

The article was received on 19 Jul 2017, accepted on 13 Sep 2017 and first published on 14 Sep 2017


Article type: Paper
DOI: 10.1039/C7NJ02631E
Citation: New J. Chem., 2017, Accepted Manuscript
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    Synthesis and absorption performance of core-shell magnetic polymers for solid phase extraction and detection of glibenclamide in hypoglycemic health products

    Z. Wu, X. Li, M. Liu, F. Wang, L. Liu, X. Tan and F. Lei, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ02631E

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