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

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (9): 1734.

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

张朝晖^1,2, 张明磊¹, 徐添珍¹, 罗丽娟¹, 杨潇¹, 姚守拙²

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

收稿日期:2010-01-21 出版日期:2010-09-10 发布日期:2010-09-10
通讯作者: 张朝晖, 男, 博士, 副教授, 主要从事色谱和电化学分析. E-mail: zhaohuizhang77@hotmail.com
基金资助:
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和湖南省林产化工重点实验室开放基金资助.

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

ZHANG Zhao-Hui^1,2*, ZHANG Ming-Lei¹, XU Tian-Zhen¹, LUO Li-Juan¹, YANG Xiao¹, YAO Shou-Zhuo²

1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China

Received:2010-01-21 Online:2010-09-10 Published:2010-09-10
Contact: ZHANG Zhao-Hui. E-mail: zhaohuizhang77@hotmail.com
Supported by:
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和湖南省林产化工重点实验室开放基金资助.

摘要/Abstract

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40 nm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.

关键词: Cr(Ⅲ), 微波辅助, 离子印迹聚合物, 固相萃取, 核-壳型

Abstract: 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.

Key words: Chromium(Ⅲ), Microwave-assisted, Ion-imprinted polymer, Solid-phase extraction, Core-shell

TrendMD:

张朝晖, 张明磊, 徐添珍, 罗丽娟, 杨潇, 姚守拙. 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. 高等学校化学学报, 2010, 31(9): 1734.

ZHANG Zhao-Hui, ZHANG Ming-Lei, XU Tian-Zhen, LUO Li-Juan, YANG Xiao, .... Microwave-assisted Heating Preparation of Core-shell Ion-imprinted Polymer and Extraction of Cr(Ⅲ) from Urine. Chem. J. Chinese Universities, 2010, 31(9): 1734.

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