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分子印迹 - 固相萃取法选择性分离大黄酸的研究.pdf

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第29卷第5期 林 产 化 学 与 工 业 V01.29No.5 2009年lO月 and ofForestProducts 0ct.2009 ChemistryIndustry 分子印迹一固相萃取法选择性分离大黄酸的研究 段玉清,张海晖,徐菲菲,闰永胜,李金凤,梁凯 (江苏大学食品与生物工程学院,江苏镇江212013) 摘要: 以大黄酸(RH)为印迹分子,大孔壳聚糖为功能栽体,甲基丙烯酸为功能单体,制备大黄 与非印迹聚合物(NIP)相比,对大黄酸表现出较高的选择性和识别性。使大黄酸的质量分数由 DuAN Yu—qing 平衡等温线。 关键词: 分子印迹聚合物;固相萃取;大黄酸 中图分类号:TQ351.0 文献标识码:A 文章编号:0253—2417(2009)05—0035—06 Selective ofRheinMolecular and Separation by ImprintingPolymer Extraction Solid.phase DUAN Hai·hui,XUFei-fei,YAN Kai Yu—qing,ZHANG Yong—sheng,LIJin·feng,LIANG ofFoodand (School BiologicalEngineering,JiangsuUniversity,Zhenjiang212013,China) chitosan Abstract:Amolecularlyimprintedpolymer(MIP)wasusing molecule,nmcropomus preparedrhein(RH)鹪imprinted beads幽functionalmatrixand acid∞functionalmonomer.Theobtained wem methacrylic molecularlyimprintedpolymers evaluatedsolid extractionandHPLCwith totheirselective forrhein.MIPexhibited by phase respect recognitionability higher and forrheinin of the rhein amixtureRH—MIPthan contentof selectivityrecognitionability non—imprintedpolymer(NIP),and w鹪increasedfrom16.55%to andFreundlich modelswere todescribethe 95.12%.Langmuir adsorption applied equilibrium rhein isothermsof adsorbedMIP. by words:molecular Key imprintingpolymer;solid—p
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