磁性分子印迹聚合物对石榴皮中白藜芦醇的选择性富集OA北大核心CSTPCD
Magnetic Molecularly Imprinted Polymer for Selective Enrichment of Resveratrol in Pomegranate Rind
本实验采用表面分子印迹技术,以四氧化三铁颗粒为磁芯、白藜芦醇为模板分子、多巴胺为功能单体和交联剂,制备Fe3O4磁性分子印迹聚合物(Fe3O4@molecularly imprinting polymer,Fe3O4@MIPs).利用扫描电子显微镜、红外光谱仪、X射线衍射仪及振动样品磁强计对磁性分子印迹聚合物表面基团、颗粒形状、骨架结构及磁化强度进行表征,并利用高效液相色谱法检测Fe3O4@MIPs对白藜芦醇的吸附性能.结果表明,Fe3O4@MIPs具有较高的磁化强度和较稳定的形态结构,当吸附时间为150 min、白藜芦醇初始质量浓度为40 μg/mL时,最高吸附量达35.101 μg/mg,说明该材料对白藜芦醇具有良好的吸附性能.综上,以Fe3O4@MIPs为吸附剂,固相萃取石榴皮中白藜芦醇时,能够达到选择性识别及富集目标物的目的.
Fe3O4 magnetic molecularly imprinted polymers(Fe3O4@MIPs)were prepared by adopting surface molecular imprinting technology using Fe3O4 particles as the magnetic core,resveratrol as the template molecule,and dopamine(DA)as the functional monomer and crosslinking agent.The surface groups,particle shape,skeleton structure,and magnetization intensity of Fe3O4@MIPs were characterized through scanning electron microscopy(SEM),infrared(IR)spectroscopy,X-ray diffraction(XRD)and vibrating sample magnetometry(VSM),and its adsorption performance for resveratrol was detected using high performance liquid chromatography(HPLC).The results indicated that Fe3O4@MIPs had high magnetization intensity and showed a stable morphology.When the adsorption time was 150 minutes and the concentration of resveratrol was 40 μg/mL,the maximum adsorption capacity of 35.101 μg/mg was obtained,indicating a good adsorption performance.In conclusion,solid phase extraction with Fe3O4@MIPs as the sorbent enabled selective recognition and enrichment of resveratrol from pomegranate rind.
热阳古·阿布拉;热萨莱提·伊敏;吴泽
喀什大学化学与环境科学学院,新疆特色药食用植物资源化学重点实验室,新疆 喀什 844000
轻工业
Fe3O4磁性分子印迹聚合物白藜芦醇吸附性能石榴皮高效液相色谱法
Fe3O4 magnetic molecularly imprinted polymersresveratroladsorption performancepomegranate rindhigh performance liquid chromatography
《食品科学》 2024 (018)
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新疆维吾尔自治区自然科学基金项目(2021D01B08);喀什地区科技计划项目(KS2022091);新疆维吾尔自治区高校科研业务费科研项目(XJEDU2023P106)
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