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Amperometric sensing of hydrogen peroxide vapor for security screening

Rapid detection of the hydrogen peroxide precursor of peroxide explosives is required in numerous security screening applications. We describe a highly sensitive and selective amperometric detection of hydrogen peroxide vapor at an agarose-coated Prussian-blue (PB) modified thick-film carbon transdu...

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Detalles Bibliográficos
Autores principales: Benedet, John, Lu, Donglai, Cizek, Karel, La Belle, Jeff, Wang, Joseph
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2727587/
https://www.ncbi.nlm.nih.gov/pubmed/19396431
http://dx.doi.org/10.1007/s00216-009-2788-7
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author Benedet, John
Lu, Donglai
Cizek, Karel
La Belle, Jeff
Wang, Joseph
author_facet Benedet, John
Lu, Donglai
Cizek, Karel
La Belle, Jeff
Wang, Joseph
author_sort Benedet, John
collection PubMed
description Rapid detection of the hydrogen peroxide precursor of peroxide explosives is required in numerous security screening applications. We describe a highly sensitive and selective amperometric detection of hydrogen peroxide vapor at an agarose-coated Prussian-blue (PB) modified thick-film carbon transducer. The sensor responds rapidly and reversibly to dynamic changes in the level of the peroxide vapor, with no apparent carry over and with a detection limit of 6 ppbv. The remarkable selectivity of the PB-based screen-printed electrode towards hydrogen peroxide leads to effective discrimination against common beverage samples. For example, blind tests have demonstrated the ability to selectively and non-invasively identify concealed hydrogen peroxide in drinking cups and bottles. The attractive performance of the new microfabricated PB-based amperometric peroxide vapor sensor indicates great potential for addressing a wide range of security screening and surveillance applications. [Figure: see text]
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spelling pubmed-27275872009-08-18 Amperometric sensing of hydrogen peroxide vapor for security screening Benedet, John Lu, Donglai Cizek, Karel La Belle, Jeff Wang, Joseph Anal Bioanal Chem Original Paper Rapid detection of the hydrogen peroxide precursor of peroxide explosives is required in numerous security screening applications. We describe a highly sensitive and selective amperometric detection of hydrogen peroxide vapor at an agarose-coated Prussian-blue (PB) modified thick-film carbon transducer. The sensor responds rapidly and reversibly to dynamic changes in the level of the peroxide vapor, with no apparent carry over and with a detection limit of 6 ppbv. The remarkable selectivity of the PB-based screen-printed electrode towards hydrogen peroxide leads to effective discrimination against common beverage samples. For example, blind tests have demonstrated the ability to selectively and non-invasively identify concealed hydrogen peroxide in drinking cups and bottles. The attractive performance of the new microfabricated PB-based amperometric peroxide vapor sensor indicates great potential for addressing a wide range of security screening and surveillance applications. [Figure: see text] Springer-Verlag 2009-04-24 2009-09 /pmc/articles/PMC2727587/ /pubmed/19396431 http://dx.doi.org/10.1007/s00216-009-2788-7 Text en © The Author(s) 2009
spellingShingle Original Paper
Benedet, John
Lu, Donglai
Cizek, Karel
La Belle, Jeff
Wang, Joseph
Amperometric sensing of hydrogen peroxide vapor for security screening
title Amperometric sensing of hydrogen peroxide vapor for security screening
title_full Amperometric sensing of hydrogen peroxide vapor for security screening
title_fullStr Amperometric sensing of hydrogen peroxide vapor for security screening
title_full_unstemmed Amperometric sensing of hydrogen peroxide vapor for security screening
title_short Amperometric sensing of hydrogen peroxide vapor for security screening
title_sort amperometric sensing of hydrogen peroxide vapor for security screening
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2727587/
https://www.ncbi.nlm.nih.gov/pubmed/19396431
http://dx.doi.org/10.1007/s00216-009-2788-7
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