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22 February 2002 Surface-enhanced Raman as a water monitor for warfare agents
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Proceedings Volume 4577, Vibrational Spectroscopy-based Sensor Systems; (2002)
Event: Environmental and Industrial Sensing, 2001, Boston, MA, United States
The threat of chemical warfare agents being released upon civilian and military personnel continues to escalate. One aspect of chemical preparedness is to analyze and protect the portable water supply for the military. Chemical nerve, blister, and choking agents, as well as biological threats must all be analyzed and low limits of detection must be verified. For chemical agents, this generally means detection down to the low ppb levels. Surface-Enhanced Raman Spectroscopy (SERS) is a spectroscopic technique that can detect trace levels of contaminants directly in the aqueous environment. In this paper, results are presented on the use of SERS to detect chemical and biological agent simulants with an end goal of creating a Joint Service Agent Water Monitor. Detection of cyanide, 2-chloroethyl ethyl sulfide, phosphonates, Gram-positive and Gram-negative bacteria using SERS has been performed and is discussed herein. Aspects of transferring laboratory results to an unattended field instrument are also discussed.
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Kevin M. Spencer, James M. Sylvia, Susan L. Clauson, and James A. Janni "Surface-enhanced Raman as a water monitor for warfare agents", Proc. SPIE 4577, Vibrational Spectroscopy-based Sensor Systems, (22 February 2002);

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