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Proceedings Paper

Surface-enhanced Raman sensor for trace chemical detection in water
Author(s): Vincent Yuan-Hsiang Lee; Stuart Farquharson; Petrie M. Rainey
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Paper Abstract

Surface-enhanced Raman spectroscopy (SERS) promises to be one of the most sensitive methods for chemical detection and in recent years SERS has been used for chemical, biochemical, environmental, and physiological applications. A variety of methods using various media (electrodes, colloids, and substrates) have been successfully developed to enhance Raman signals by six orders of magnitude and more. However, SERS has not become a routine analytical technique because these methods are unable to provide quantitative measurements. This is largely due to the inability to fabricate a sampling medium that provides reversible chemical adsorption, analysis-to-analysis reproducibility, unrestricted solution requirements (reagent concentration and pH) or sample phase (liquid or solid). In an effort to overcome these restrictions, we have developed metal-doped sol-gels to provide surface-enhancement of Raman scattering.

Paper Details

Date Published: 18 November 1999
PDF: 9 pages
Proc. SPIE 3857, Chemical Microsensors and Applications II, (18 November 1999); doi: 10.1117/12.370273
Show Author Affiliations
Vincent Yuan-Hsiang Lee, Advanced Fuel Research, Inc. (United States)
Stuart Farquharson, Advanced Fuel Research, Inc. (United States)
Petrie M. Rainey, Yale Univ. (United States)

Published in SPIE Proceedings Vol. 3857:
Chemical Microsensors and Applications II
Stephanus Buettgenbach, Editor(s)

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