搅拌管内分子印迹固相萃取涂层的制备与吸附性能  

Preparation and adsorption property of the estradiol-based molecularly imprinted coating in a stir tube

作　　者：王建[1] 王沁梅 田莉莉[1] 汪婷雯 于素华[1] 杨晨[1] 杨春[1] 

机构地区：[1]扬州大学化学化工学院,江苏扬州225009 [2]西安交通大学电气工程学院,陕西西安710049 [3]华东理工大学材料科学与工程学院,上海200237

出　　处：《现代化工》2015年第10期87-90,共4页Modern Chemical Industry

基　　金：国家自然科学基金资助项日(21375115)

摘　　要：将分子印迹技术与搅拌吸附萃取技术结合,在镀镍铁管内壁制备了以雌二醇分子为模板,PA 66为骨架的分子印迹固相萃取涂层,使整个装置具有搅拌和萃取的功能,并探究了其对雌二醇及其结构类似物分子的吸附性能和选择性能。结果表明:该装置对雌二醇的吸附在90 min内可达平衡,吸附率为67.5%,分别是对雌三醇和雌酮吸附率的14和68倍,说明其对雌二醇具有高选择性;该分子印迹层使用50次后,对雌二醇的吸附率仅下降5.3%,说明管内分子印迹固相萃取涂层能保持较长的使用寿命。A molecularly imprinted coating in a stir tube is prepared by using estradiol （E2） as a template and PA 66 as a framework, based on the combination of the molecular imprinting technique and stirring extraction. The adsorption and selection property of the molecularly imprinted coating for E2 and its analogues are also studied. The results show that the molecularly imprinting coating has high selectivity for E2. At the same time, the adsorption efficiency for E2 is decreased by only 5 % after used for 50 times, which implies that the estradiol-based molecularly imprinting coating in a stir tube can ensure a long term service life.

关 键 词：分子印迹 搅拌管 吸附率 雌二醇 

分 类 号：O652.7[理学—分析化学] O657.72[理学—化学]