Preparation and evaluation of molecularly imprinted polymers based on magnetic graphene oxide for selective extraction and determination of quercetin in red wine

文献类型： 外文期刊

第一作者： Cheng, Yang

作者： Cheng, Yang;Liu, Hongdi;Kuang, Lixue;Yan, Zhen;Li, Haifei;Xu, Guofeng

作者机构：

关键词： Molecularly imprinted polymers; Surface molecular imprinting technology; Quercetin; Magnetic graphene oxide; Red wine

期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.8； 五年影响因子：4.5 ）

ISSN： 0026-265X

年卷期： 2023 年 190 卷

页码：

收录情况： SCI

摘要： In this work, a high selectivity molecularly imprinted polymer (Fe3O4/GO@MIP) for quercetin was successfully synthesized by combination of surface molecular imprinting technology and magnetic graphene oxide (Fe3O4/ GO). Several characterization methods were adopted to verify the successful synthesis of Fe3O4/GO@MIPs. The resultant Fe3O4/GO@MIPs exhibited outstanding adsorption capacity (18.24 mg g-1), remarkable regeneration ability and excellent selectivity toward quercetin. The results indicated that the Fe3O4/GO@MIPs had higher adsorption capacity and better selectivity for quercetin compared with non-imprinted polymers (Fe3O4/ GO@NIPs). The wide linearity of the proposed method was achieved within the concentration of quercetin from 0.1 to 200 mu g mL-1 with R2 > 0.999, and the limit of detection (LOD) was calculated as 0.03 mu g mL-1. Under the optimum conditions, the satisfactory recoveries for quercetin in the spiked red wine samples were in the range of 96.8%-101.4% with the relative standard deviation (RSD) less than 5%. Furthermore, the obtained Fe3O4/ GO@MIPs were further employed as promising adsorbents for the separation and detection of quercetin in red wine combined with high performance liquid chromatography (HPLC) detection.

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