Electrochemical sensor for nitrobenzene based on carbon paste electrode modified with a poly(3,4-ethylenedioxythiophene) and carbon nanotube nanocomposite

被引：45
|
作者：
Xu, Guiyun [1 ]
Li, Beibei [1 ]
Wang, Xin [1 ]
Luo, Xiliang [1 ]
机构：
[1] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Shandong Prov Key Lab Biochem Anal, Qingdao 266042, Peoples R China
来源：
MICROCHIMICA ACTA | 2014年 / 181卷 / 3-4期
基金：
中国国家自然科学基金;
关键词：
Nitrobenzene; Conducting polymer; Carbon nanotubes; Poly(3,4-ethylenedioxythiophene); Carbon paste electrode; DOPED POLY(3,4-ETHYLENEDIOXYTHIOPHENE); COMPOSITE; WATER;
D O I：
10.1007/s00604-013-1136-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensitive and selective electrochemical sensor for the determination of nitrobenzene (NB) was developed based on a carbon paste electrode (CPE) modified with a nanocomposite prepared from the conducting polymer poly(3,4-ethylenedioxythiophene) and carbon nanotubes. The modified CPE exhibits good conductivity, a large surface area, and excellent catalytic activity towards the electrochemical reduction of NB. Under optimal conditions, the modified CPE is capable of detecting NB in the 0.25 to 43 mu M concentration range and with a detection limit at 83 nM. Moreover, the sensor is highly stable and reusable, and free of interferences by other commonly present nitro compounds. It was used to determine NB in wastewater samples.
引用
收藏
页码：463 / 469
页数：7
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