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Proceedings Paper

Chemical agent detection by surface-enhanced Raman spectroscopy
Author(s): Stuart Farquharson; Alan Gift; Paul Maksymiuk; Frank E. Inscore; Wayne W. Smith; Kevin Morrisey; Steven D. Christesen
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Paper Abstract

In the past decade, the Unites States and its allies have been challenged by a different kind of warfare, exemplified by the terrorist attacks of September 11, 2001. Although suicide bombings are the most often used form of terror, military personnel must consider a wide range of attack scenarios. Among these is the intentional poisoning of water supplies to obstruct military operations in Afghanistan and Iraq. To counter such attacks, the military is developing portable analyzers that can identify and quantify potential chemical agents in water supplies at microgram per liter concentrations within 10 minutes. To aid this effort we have been investigating the value of a surface-enhanced Raman spectroscopy based portable analyzer. In particular we have been developing silver-doped sol-gels to generate SER spectra of chemical agents and their hydrolysis products. Here we present SER spectra of several chemical agents measured in a generic tap water. Repeat measurements were performed to establish statistical error associated with SERS obtained using the sol-gel coated vials.

Paper Details

Date Published: 8 March 2004
PDF: 7 pages
Proc. SPIE 5269, Chemical and Biological Point Sensors for Homeland Defense, (8 March 2004); doi: 10.1117/12.511940
Show Author Affiliations
Stuart Farquharson, Real-Time Analyzers, Inc. (United States)
Alan Gift, Real-Time Analyzers, Inc. (United States)
Paul Maksymiuk, Real-Time Analyzers, Inc. (United States)
Frank E. Inscore, Real-Time Analyzers, Inc. (United States)
Wayne W. Smith, Real-Time Analyzers, Inc. (United States)
Kevin Morrisey, Edgewood Chemical Biological Ctr. (United States)
Steven D. Christesen, Edgewood Chemical Biological Ctr. (United States)

Published in SPIE Proceedings Vol. 5269:
Chemical and Biological Point Sensors for Homeland Defense
Arthur J. Sedlacek III; Richard Colton; Tuan Vo-Dinh, Editor(s)

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