微波辅助核-壳型Cr(Ⅲ)离子印迹聚合物的制备及在尿液中的分离应用  

Microwave-assisted Heating Preparation of Core-shell Ion-imprinted Polymer and Extraction of Cr( Ⅲ) from Urine

作　　者：张朝晖[1,2] 张明磊[1] 徐添珍[1] 罗丽娟[1] 杨潇[1] 姚守拙[2] 

机构地区：[1]吉首大学化学化工学院,吉首416000 [2]湖南大学化学传感与计量国家重点实验室,长沙410082

出　　处：《高等学校化学学报》2010年第9期1734-1740,共7页Chemical Journal of Chinese Universities

基　　金：湖南省自然科学基金(批准号:08JJ4004);湖南省科技计划项目(批准号:2009FJ3009);湖南大学化学传感与计量国家重点实验室开放基金;湖南省林产化工重点实验室开放基金资助

摘　　要：以3-氨丙基三甲氧基硅烷为离子配体,正硅酸乙酯为交联剂,借助微波辅助加热,在二氧化硅表面快速制备Cr(Ⅲ)离子印迹聚合物,聚合时间比常规时间缩短了5倍.利用扫描电镜对印迹聚合物形貌进行了表征,结果表明,该印迹聚合物粒径分布均匀,Cr(Ⅲ)离子成功地包覆在厚度约为40nm的印迹壳层内.详细地探讨了该印迹材料的吸附性能,并利用该印迹聚合物作为固相萃取填充料,成功地用于尿样中Cr(Ⅲ)的固相萃取.An ion-imprinted polymer（ IIP） was prepared via surface imprinting technique under the microwave-assisted heating using Cr（ Ⅲ） ion as template,3-aminopropyl trimethoxysilane as function monomer and tetraethyl orthosilicate（ TEOS） as cross-linking agent. Compared with conventional method,the term of the polymerization was dramatically shortened five times by using microwave-assisted heating. The IIP was characterized by scanning electron microscope（ SEM） ,and the result shows that the size of IIP is uniform and the thickness of the imprinted shell is about 40 nm. The adsorption capacity of IIP was investigated in detail. As packing material of SPE,the imprinted material was used to extract Cr（ Ⅲ） from urine successfully.

关 键 词：Cr(Ⅲ) 微波辅助 离子印迹聚合物 固相萃取 核-壳型 

分 类 号：O657[理学—分析化学]