''Novel Optical Detection Schemes for In-Situ Mapping of Volatile Organochlorides in the Vadose Zone''
Long-term objective is to develop a system for measuring and identifying a wide range of volatile organic hydrocarbons, including aromatics, carbon tetrachloride, TCE and other organochlorides, at ppb levels in-situ in the subsurface (''at-depth'') using a fiber-optic REMPI probe in a cone penetrometer. Specific focus of much of the proposed work is to identify and optimize those experimental parameters which effect the in-situ determination of organic molecules in the subsurface using resonance-enhanced multi-photon ionization (REMPI). Emphasis is placed on visible excitation so that the high transmission of fiber-optics at visible wavelengths can be fully utilized. A fiber-optic REMPI system is being designed and integrated into an existing cone penetrometer system at LLNL. The design will be compatible with existing Raman and fluorescence probes.
- Research Organization:
- Department of Chemistry and Biochemistry, The University of South Carolina, Columbia, SC; Department of Civil Engineering, Boise State University,Boise, Idaho (US)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM) (US)
- DOE Contract Number:
- FG07-99ER62881
- OSTI ID:
- 833498
- Report Number(s):
- EMSP-70050-2001; R&D Project: EMSP 70050; TRN: US200430%%1542
- Resource Relation:
- Other Information: PBD: 1 Jun 2001
- Country of Publication:
- United States
- Language:
- English
Similar Records
Innovative Technologies And Vadose Zone Treatment Of Chlorinated Volatile Organic Compounds - Case Study
Raman probe. Innovative technology summary report