College of Food Science, Southwest University, Chongqing, China.
College of Horticulture & Landscape Architecture, Southwest University, Chongqing, China.
J Sep Sci. 2018 Jan;41(2):590-601. doi: 10.1002/jssc.201701014. Epub 2017 Nov 28.
Molecularly imprinted polymers were prepared using the molecular structure analogs of sanshool as template molecule, 2-vinylpyridine and β-cyclodextrin as double functional monomers, ethylene dimethacrylate as cross linker, and azobisisobutyronitrile as initiator. The structural characteristics of the polymers were determined by Fourier-transform infrared spectroscopy and scanning electron microscopy. Dynamic adsorption and isothermal adsorption were also investigated. The molecularly imprinted polymers were used to prepare a molecularly imprinted solid-phase extraction column in order to separate acid amide components from pepper oil resin derived from Chinese prickly ash (Zanthoxylum bungeanum). After eluting, the percentage of acid amide components was enhanced to 92.40 ± 1.41% compared with 23.34 ± 1.21% in the initial pepper oil resin, indicating good properties of purification of molecularly imprinted polymers and potential industrial application.
采用辣椒素分子结构类似物为模板分子，2-乙烯基吡啶和β-环糊精为双功能单体，乙二醇二甲基丙烯酸酯为交联剂，偶氮二异丁腈为引发剂，制备了分子印迹聚合物。采用傅里叶变换红外光谱和扫描电子显微镜对聚合物的结构特征进行了测定。还考察了动态吸附和等温吸附。将分子印迹聚合物用于制备分子印迹固相萃取柱，以从花椒（Zanthoxylum bungeanum）油树脂中分离酰胺酸成分。洗脱后，酰胺酸成分的百分比从初始花椒油树脂中的 23.34±1.21%提高到 92.40±1.41%，表明分子印迹聚合物具有良好的纯化性能，具有潜在的工业应用前景。
