印迹技术在痕量金属分离和富集中的应用  

The application of molecular imprinting techniques in selective separation and preconcentration of trace metals

作　　者：邓勃[1] 

机构地区：[1]清华大学化学系,北京100084

出　　处：《中国无机分析化学》2011年第1期1-6,52,共7页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：分子印迹是近年来正在发展的制备分子识别功能材料的新技术。用印迹技术制备的分子印迹聚合物和离子印迹聚合物的优点是:高度预定的选择性、识别性和实用性。印迹技术与固相微萃取联用在痕量组分的选择性分离和预富集方面有着广阔的应用前景。本文介绍了近年来印迹技术在痕量金属选择性分离和预富集中的应用进展,并分别详细阐述了Hg(Ⅱ)、镉、铜、镍、钴、锌、铅、UO_2^(2+)、丁基锡和三苯基锡印迹聚合物的制备及其在环境、食品、生物及医药样品中的分析应用。The molecular imprint is a novel technique prepared functionalized materials for molecular recognition and is developing in recent years. The advantages of molecularly imprinted polymer and ionic imprinted polymer prepared using molecular imprinting technique are： highly predetermined selectivity, molecular recognition capability and good practicality. Combining with solid-phase microextraction method, imprinting techniques have wide application perspectives in selective separation and preconcentraction of trace constituents in samples. In this paper, the recent developments on applications of molecular imprinting techniques in selective separation and preconcentration of trace metals were introduced. The preparation of a series of the ion-imprinted polymers, which contain one of the ions as Hg（Ⅱ）-,Ni（Ⅱ）-,Cu（Ⅱ）-,Co（Ⅱ）-, Zn（Ⅱ）-, Pb（Ⅱ）-, UO22＋-,and MBT-,DBT-,TBT-, as well as phenyl tin, were described and the appli- cations of these ion-imprinted polymers in analysis of environmental, food, biological, medical as well as drug samples were demonstrated in detail.

关 键 词：分子印迹 分子印迹聚合物 离子印迹聚合物 分子识别 微萃取 痕量分析 

分 类 号：O658[理学—分析化学] TQ425.2[理学—化学]