Conductive polymer gas sensor for quantitative detection of methanol in Brazilian sugar-cane spirit

Conductive polymer gas sensor for quantitative detection of methanol in Brazilian sugar-cane spirit

Author Péres, Laura Oliveira Autor UNIFESP Google Scholar
Li, Rosamaria W. C. Google Scholar
Yamauchi, Elaine Y. Google Scholar
Lippi, Renata Google Scholar
Gruber, Jonas Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Abstract A low-cost chemiresistive gas sensor is described, made by the deposition of a thin film of a conductive polymer, poly(2-dodecanoylsulfanyl-p-phenylenevinylene), doped with dodecylbenzenesulfonic acid (10%, w/w), onto interdigitated electrodes. the sensor exhibits linear electrical conductance changes in function of the concentration of methanol present in sugar-cane spirit in the range between 0.05% and 4.0%. Since the sensor is cheap, easy to fabricate, durable, presents low power consumption, and is not sensitive to ethanol, acetic acid or water, it can be used in portable equipments for monitoring methanol levels in distilled alcoholic beverages such as Brazilian sugar-cane spirit (cachaca). (C) 2011 Elsevier B.V. All rights reserved.
Keywords Gas sensor
Electronic nose
Conductive polymer
Sugar-cane spirit
Alcoholic beverages
Methanol
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number FAPESP: 06/59464-2
CNPq: 303717/2010-6
CNPq: 472297/2007-4
Date 2012-02-15
Published in Food Chemistry. Oxford: Elsevier B.V., v. 130, n. 4, p. 1105-1107, 2012.
ISSN 0308-8146 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 1105-1107
Origin http://dx.doi.org/10.1016/j.foodchem.2011.08.014
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000296124600047
URI http://repositorio.unifesp.br/handle/11600/34626

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