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Title: An electronic nose for amine detection based on polymer/SWNT-COOH nanocomposite
Authors: Teerakiat Kerdcharoen
Keywords: CNT/polymer gas sensor;Electronic nose;Fish freshness monitoring;Volatile amine
Issue Date: 2011
Publisher: 2011 American Scientific Publishers All rights reserved.
Citation: ฟิสิกส์
Series/Report no.: ;10454-10459
Abstract: An electronic nose (e-nose) system based on polymer/carboxylic- functionalized single-walled carbon nanotubes (SWNT-COOH) was developed for sensing various volatile amines. The SWNTCOOH dispersed in the matrix of different polymers; namely, polyvinyl chloride (PVC), cumene terminated polystyrene-co-maleic anhydride (cumene-PSMA), poly(styrenecomaleic acid) partial isobutyl/methyl mixed ester (PSE), and polyvinylpyrrolidon (PVP), were deposited on interdigitated gold electrodes to make the gas sensors. The response of these sensors to volatile amines was studied by both static and dynamic flow measurements. It was found that all sensors exhibited behaviors corresponding to Plateau-Bretano-Stevens law (R 2 = 0.81 to 0.99) as the response to volatile amines. Real-world application was demonstrated by applying this e-nose to monitor the odor of sun-dried snakeskin gourami that was pre-processed by salting-preservation. This electronic nose can discriminate sun-dried fish odors with different stored days using a simple pattern recognition based on the principal component analysis (PCA).
Description: Scopus
ISSN: 15334880
Appears in Collections:Physics: International Proceedings

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