分析测试学报2013，Vol.32Issue(6)：726-731,6.DOI:10.3969/j.issn.1004-4957.2013.06.013
苏丹红Ⅰ磁性分子印迹聚合物的制备及其分离分析应用
Preparation of a Kind of Magnetic Molecularly Imprinted Polymer toward Sudan Ⅰ and Its Application in Separation of Sudan Ⅰ
摘要
Abstract
Novel magnetic molecularly imprinted polymers(M-MIPs) were prepared using Sudan Ⅰ as template by molecularly imprinting technique.The morphology,composition and magnetic properties of magnetic nanoparticles were characterized by scanning electron microscope,infrared spectroscopy and vibrating sample magnetometer.The Scatchard analysis showed that there were two kinds of binding sites between the imprinted polymers and the template.The apparent maximum number (Qmax) of the M-MIPs were 84.59 μmol/g and 210.49 μ mol/g,respectively.The relative selectivity coefficient of M-MIPs toward Sudan Ⅰ/Sudan Ⅱ and Sudan Ⅰ/Sudan Ⅲ were 2.47 and 2.24,respectively,which indicated that the M-MIPs exhibited better adsorption properties and selectivity for Sudan Ⅰ.The M-MIPs were applied in the separation of Sudan I in the extracting solution of paprika.The eluant after treating with the M-MIPs was determined by HPLC.The detection limit was 0.50 μg/g.The recoveries of Sudan I ranged from 78％ to 103％ with RSDs of 2.8％-5.8％.关键词
磁性聚合物/分子印迹/分离富集/苏丹红ⅠKey words
magnetic polymers/ molecularly imprinted/ separation and enrichment/ Sudan Ⅰ分类
化学化工引用本文复制引用
马洁,黄静,曾延波,张祖磊,张剑,陈智栋,李蕾..苏丹红Ⅰ磁性分子印迹聚合物的制备及其分离分析应用[J].分析测试学报,2013,32(6):726-731,6.基金项目
国家自然科学基金项目(21177049) （21177049）
浙江省科技计划项目(2011C22096,2011C37033) （2011C22096,2011C37033）
嘉兴市科技计划项目(2010AY1018,2011AY1027) （2010AY1018,2011AY1027）
