New composite porphyrin-conductive polymer gas sensors for application in electronic noses

被引：46
|
作者：
Esteves, Carlos H. A. [1 ]
Iglesias, Bernardo A. [1 ]
Li, Rosamaria W. C. [1 ,2 ]
Ogawa, Takuji [3 ]
Araki, Koiti [1 ]
Gruber, Jonas [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim, BR-05508000 Sao Paulo, Brazil
[2] Ctr Univ Estacio Radial Sao Paulo, Sao Paulo, Brazil
[3] Osaka Univ, Grad Sch Sci, Dept Chem, Osaka, Japan
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 193卷
基金：
巴西圣保罗研究基金会;
关键词：
Gas sensor; Electronic nose; Conductive polymer; Porphyrin; Composite sensor; DISCRIMINATION;
D O I：
10.1016/j.snb.2013.11.022
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this paper, a new composite sensor for e-nose application is described. A modification in the regular pair conductive polymer/Lewis acid dopant is proposed, replacing the acid by free-base or metallated porphyrins. Sensors doped with different porphyrin species, using the same conductive polymer, led to a huge variation in response to selected analytes. Two different arrays (doped with free-base and metallated porphyrins) using these sensors were able to identify four organic solvents, used as standard analytes: propanone, ethyl acetate, ethanol and toluene. Both of them could distinguish the tested vapours. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：136 / 141
页数：6
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