Detection of trace levels of volatile organic compounds using fiber optic Raman spectrometry
Conference
·
OSTI ID:276305
- Naval Research Lab., Washington, DC (United States). Optical Sciences Div.
Raman spectrometry has significant advantages over other spectroscopic techniques when used as an in situ, real time sensor system. Raman spectrometry is highly selective since the vibrational characteristics of the compound being detected produces a unique Raman spectra which is readily identifiable. Another advantage of Raman spectrometry is that commercially available silica optical fibers can be used to obtain the unique Raman fingerprint of a compound, whereas infrared spectra require specialized long wavelength transmitting optical fibers. A novel fiber optic Raman probe for determination of organic vapors is described. The probe utilizes an absorbent resin, C-18, to concentrate the organic vapors in the optical path of the Raman probe. The probe exhibits a fully reversible response to organic vapors such as carbon tetrachloride or benzene.
- OSTI ID:
- 276305
- Report Number(s):
- CONF-9411144--; ISBN 0-8194-1713-0
- Country of Publication:
- United States
- Language:
- English
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