Conductive polymer gas sensor for quantitative detection of methanol in Brazilian sugar-cane spirit
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
06/11/2013
06/11/2013
2012
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| Resumo |
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 Ltd. All rights reserved. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [06/59464-2] Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [303717/2010-6, 472297/2007-4] Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) |
| Identificador |
FOOD CHEMISTRY, OXFORD, v. 130, n. 4, pp. 1105-1107, FEB 15, 2012 0308-8146 http://www.producao.usp.br/handle/BDPI/42184 10.1016/j.foodchem.2011.08.014 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCI LTD OXFORD |
| Relação |
FOOD CHEMISTRY |
| Direitos |
closedAccess Copyright ELSEVIER SCI LTD |
| Palavras-Chave | #GAS SENSOR #ELECTRONIC NOSE #CONDUCTIVE POLYMER #SUGAR-CANE SPIRIT #ALCOHOLIC BEVERAGES #METHANOL #LOW-COST #VAPORS #CHEMISTRY, APPLIED #FOOD SCIENCE & TECHNOLOGY #NUTRITION & DIETETICS |
| Tipo |
article original article publishedVersion |
