| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 740051 | Sensors and Actuators B: Chemical | 2014 | 6 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Carlos H.A. Esteves, Bernardo A. Iglesias, Rosamaria W.C. Li, Takuji Ogawa, Koiti Araki, Jonas Gruber,