吸附
葡萄酒
分子印迹聚合物
检出限
槲皮素
萃取(化学)
化学
色谱法
石墨烯
分子印迹
聚合物
纳米技术
材料科学
有机化学
选择性
抗氧化剂
食品科学
催化作用
作者
Cheng Yang,Hongdi Liu,Lixue Kuang,Zhiying Yan,Haifei Li,Guofeng Xu
标识
DOI:10.1016/j.microc.2023.108716
摘要
In this work, a high selectivity molecularly imprinted polymer (Fe3O4/[email protected]) 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/[email protected]. The resultant Fe3O4/[email protected] exhibited outstanding adsorption capacity (18.24 mg g−1), remarkable regeneration ability and excellent selectivity toward quercetin. The results indicated that the Fe3O4/[email protected] had higher adsorption capacity and better selectivity for quercetin compared with non-imprinted polymers (Fe3O4/[email protected]). The wide linearity of the proposed method was achieved within the concentration of quercetin from 0.1 to 200 μg mL−1 with R2 > 0.999, and the limit of detection (LOD) was calculated as 0.03 μg 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/[email protected] 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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