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首页> 外文期刊>RSC Advances >Development of hydrophilic magnetic molecularly imprinted polymers by directly coating onto Fe3O4 with a water-miscible functional monomer and application in a solid-phase extraction procedure for iridoid glycosides
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Development of hydrophilic magnetic molecularly imprinted polymers by directly coating onto Fe3O4 with a water-miscible functional monomer and application in a solid-phase extraction procedure for iridoid glycosides

机译：通过与水混溶性功能单体直接涂覆到Fe3O4上来开发亲水性磁性分子印迹聚合物，并在固相萃取过程中对环烯醚酮苷进行应用

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摘要

Hydrophilic magnetic molecularly imprinted polymers (HMMIPs) have been synthesized by directly coating onto Fe3O4 alkenyl glycosides glucose as a novel water-miscible functional monomer, which introduces an abundance of hydrophilic groups into polymers. Photographs of the dispersion properties and water contact angles demonstrated that these HMMIPs have excellent hydrophilicity compared with those prepared using the traditional hydrophilic functional monomer, methacrylic acid. HMMIPs were characterized by Fourier transform infrared spectroscopy, vibrating sample magnetometry, transmission electron microscopy, scanning electron microscopy, and X-ray diffraction. Binding experiments indicated that HMMIPs had an excellent imprinting effect and high selectivity. Under optimum magnetic molecular imprinted solid phase extraction (MMISPE) conditions, a wide linear range (0.01-50.0 mu g mL(-1)), with low limits of detection and quantification (0.005-0.01 mu g mL(-1) and 0.019-0.033 mu g mL(-1), respectively), was achieved for eight iridoid glycosides (IGs). Typical chromatograms obtained using MMISPE showed that major interferences around the IGs were eliminated efficiently and matrix interference was minimized. The results suggest that our newly developed method, combining MMISPE with HPLC, could be used for the selective enrichment and determination of IGs.
机译：亲水磁性分子印迹聚合物（HMMIPs）是通过直接涂覆在Fe3O4烯基糖苷葡萄糖上而合成的，它是一种新型的与水混溶的功能单体，将大量亲水基团引入聚合物中。分散性能和水接触角的照片显示，与使用传统亲水功能单体甲基丙烯酸制备的HMMIPs相比，这些HMMIPs具有出色的亲水性。 HMMIPs的特征在于傅立叶变换红外光谱，振动样品磁力分析，透射电子显微镜，扫描电子显微镜和X射线衍射。结合实验表明，HMMIPs具有优异的印迹效果和高选择性。在最佳磁性分子印迹固相萃取（MMISPE）条件下，线性范围宽（0.01-50.0μg mL（-1）），检测和定量限低（0.005-0.01μg mL（-1）和0.019） -0.033μg mL（-1），分别实现了八个环烯醚酮苷（IGs）的分离。使用MMISPE获得的典型色谱图表明，可有效消除IG周围的主要干扰，并将基质干扰降至最低。结果表明，我们最新开发的方法结合了MMISPE和HPLC，可用于IG的选择性富集和测定。

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