Synthesis and characterization of core-shell magnetic molecularly imprinted polymers for selective recognition and determination of quercetin in apple samples

文献类型： 外文期刊

第一作者： Cheng, Yang

作者： Cheng, Yang;Nie, Jiyun;Li, Jing;Liu, Hongdi;Yan, Zhen;Kuang, Lixue

作者机构：

关键词： Magnetic molecularly imprinted polymer; Quercetin; Magnetic separation; Molecular recognition; Apple samples

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2019 年 287 卷

页码：

收录情况： SCI

摘要： Magnetic molecularly imprinted polymers (M-MIPs) with core-shell structure were prepared through the surface molecular imprinting technique by using quercetin as the template molecule. The resultant Fe3O4@MIPs were characterized using X-ray diffraction, Fourier transform infrared spectrum, transmission electron microscopy, and vibrating sample magnetometer. The Fe3O4@MIPs possessed high adsorption capacity and specific recognition for quercetin. The maximum adsorption capacity of Fe3O4@MIPs towards quercetin was 10.52 mg/g, and could reach binding equilibrium within 30 min. The selectivity and specific recognition ability of Fe3O4@MIPs were evaluated according to their recognition to quercetin and its analogues. The Fe3O4@MIPs were successfully applied as selective sorbents to extract and determine quercetin from apple samples with a relatively high recoveries (89.2-93.6%) and relative standard deviations of <5%. The obtained Fe3O4@MIPs have potential application for quercetin determination in real samples.

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