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Detection of Contrabands in cargo containers using a high-speed gas chromatograph with surface acoustic wave sensor / Edward J. Staples in Industrial & engineering chemistry research, Vol. 47 n°21 (Novembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p 8361–8367 Titre : Detection of Contrabands in cargo containers using a high-speed gas chromatograph with surface acoustic wave sensor Type de document : texte imprimé Auteurs : Edward J. Staples, Auteur ; Shekar Viswanathan, Auteur Année de publication : 2008 Article en page(s) : p 8361–8367 Note générale : Chemical engineerig Langues : Anglais (eng) Mots-clés : Chemical  profiling  systemExprimental  mathodology Résumé : A portable chemical profiling system for cargo containers using a single, uncoated, high Q surface acoustic wave sensor, along with a high-speed chromatograph and column, a programmable gate array microprocessor, and a vapor preconcentrator, is described. This unit provides a recognizable visual vectorial image in N-dimensional space (where N equals the number of sensors) of specific vapor mixtures (fragrances) containing possibly hundreds of different chemical species in 20 s or near real time with picogram sensitivity. This new approach, based upon fast chromatography, which combines the technology with sampling system is proven to solve complex contraband detection and measurement problems with the probability of detection equal to or greater than 90% with a false alarm rate of 1%. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie701703y [article] Detection of Contrabands in cargo containers using a high-speed gas chromatograph with surface acoustic wave sensor [texte imprimé] / Edward J. Staples, Auteur ; Shekar Viswanathan, Auteur . - 2008 . - p 8361–8367. Chemical engineerig Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p 8361–8367 Mots-clés : Chemical  profiling  systemExprimental  mathodology Résumé : A portable chemical profiling system for cargo containers using a single, uncoated, high Q surface acoustic wave sensor, along with a high-speed chromatograph and column, a programmable gate array microprocessor, and a vapor preconcentrator, is described. This unit provides a recognizable visual vectorial image in N-dimensional space (where N equals the number of sensors) of specific vapor mixtures (fragrances) containing possibly hundreds of different chemical species in 20 s or near real time with picogram sensitivity. This new approach, based upon fast chromatography, which combines the technology with sampling system is proven to solve complex contraband detection and measurement problems with the probability of detection equal to or greater than 90% with a false alarm rate of 1%. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie701703y