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Title: An electronic nose for amine detection based on polymer/SWNT-COOH nanocomposites
Authors: Panida Lorwongtragool
Anurat Wisitsoraat
Teerakiat Kerdcharoen
Mahidol University
National Electronic and Computer Technology Center
Keywords: Engineering
Issue Date: 5-May-2010
Citation: INEC 2010 - 2010 3rd International Nanoelectronics Conference, Proceedings. (2010), 73-74
Abstract: An electronic nose (e-nose) system based on polymer/carboxylic- functionalized single-walled carbon nanotubes (SWNTs-COOH) was developed for sensing various volatile amines such as dimethylamine, dipropylamine, pyridine, and ammonia solution. The SWNTs-COOH were dispersed in the matrix of different polymers; polyvinyl chloride (PVC), cumene terminated polystyrene-co-maleic anhydride (cumene-PSMA), poly(styrene-co-maleic acid) partial isobutyl/methyl mixed ester (PSE), and polyvinylpyrrolidon (PVP). These composites were dropped 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 measurement. By using a simple pattern recognition based on the principle component analysis (PCA), the volatile amines can be discriminated. This e-nose will be useful for monitoring the freshness of foods and farm air quality. ©2010 IEEE.
Appears in Collections:Scopus 2006-2010

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