Field results from the SCAPS laser-induced fluorescence (LIF) sensor for in-situ, subsurface detection of petroleum hydrocarbons
- Computer Sciences Corp., San Diego, CA (United States). Advanced Technology Div.
- Naval Command, Control and Ocean Surveillance Center, San Diego, CA (United States)
Laser Induced Fluorescence (LIF) is a powerful technique for in-situ detection of subsurface contamination due to petroleum products. This paper describes the Site Characterization and Analysis Penetrometer System (SCAPS) LIF sensor which combines an LIF spectroscopic system with a cone penetrometer truck and will present field results from a recent site characterization of a diesel fuel contaminated site. In addition to the LIF sensor measurements performed at the site, 130 soil samples were collected by hollow stem auger with split-spoon sampling and analyzed by EPA approved laboratory methods to validate the fluorescence sensor. The LIF sensor showed 96% agreement with the laboratory analysis on a detect/non-detect basis. Quantitative comparison of the fluorescence and analytical data show a strong correlation, suggesting that the fluorescence sensor may be capable of quantifying the contaminant concentration given a small number of soil samples for calibration.
- OSTI ID:
- 153289
- Report Number(s):
- CONF-9506232--; ISBN 0-8194-1862-5
- Country of Publication:
- United States
- Language:
- English
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