期刊
ANALYTICA CHIMICA ACTA
卷 786, 期 -, 页码 16-21出版社
ELSEVIER
DOI: 10.1016/j.aca.2013.05.012
关键词
Molecularly imprinted polymer; Amperometric sensor; Dehalogenative function; Chlorohemin; 2,4-Dichlorophenol; Chloroperoxidase
资金
- Natural Science Foundation of Guizhou Province [J20102120]
- National Natural Science Foundation of China [21121091, 21135002]
- Key Disciplines Construction Foundation of Guizhou Province [2012442]
A newly designed molecularly imprinted polymer (MIP) was synthesized and successfully utilized as a recognition element of an amperometric sensor for 2,4-dichlorophenol (2,4-DCP) detection. The MIP with a well-defined structure could imitate the dehalogenative function of the natural enzyme chloroperoxidase for 2,4-DCP. Imprinted sensor was fabricated in situ on a glassy carbon electrode surface by drop-coating the 2,4-DCP imprinted microgel suspension and chitosan/Nafion mixture. Under optimized conditions, the sensor showed a linear response in the range of 5.0-100 mu mol L-1 with a detection limit of 1.6 mu mol L-1. Additionally, the imprinted sensor demonstrated higher affinity to target 2,4-DCP over competitive chlorophenolic compounds than non-imprinted sensor. It also exhibited good stability and acceptable repeatability. The proposed sensor could be used for the determination of 2,4-DCP in water samples with the recoveries of 96.2-111.8%, showing a promising potential in practical application. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据