Field screening of petroleum hydrocarbons using synchronous scanning fluorescence spectrometry
- Lockheed Martin Environmental, Port Orchard, WA (United States)
- Environmental Protection Agency, Las Vegas, NV (United States); and others
The U.S. Environmental Protection Agency (EPA), National Exposure Research Laboratory (NERL), Characterization Research Division in Las Vegas, Nevada (CRD-LV) is continuing to evaluate the performance of a prototype portable scanning ultraviolet-visible fluorescence instrument as a field screening tool. This field-portable scanning spectrofluorometer (FPSS) can rapidly detect the type and relative amount of hydrocarbon contamination in soil and water samples. A recent on-site spectrofluorometric analysis of soil and water samples was conducted at an oil refinery in Billings, Montana. Soil and water samples (100 g for soil; 40 mL VOA vial for water) were collected and extracted with iso-octane. The extractants were rapidly scanned from 210 nm to 480 nm in the synchronous fluorescence mode. A wavelength offset between the excitation and emission monochromators of 10 manometers (nm) provided simplified unique spectral fingerprint scans with fluorescence intensity proportional to contaminant concentration, Spectra from environmental samples were compared with site-specific reference standards, including crude oil, fuel oil No. 2 and fuel oil No. 6. The results of the on-site field analyses gave site investigators immediate data that showed the type of hydrocarbon contamination and the relative amounts. Immediate availability of this type of information allows a field investigator to take prompt corrective action as necessary.
- OSTI ID:
- 613759
- Report Number(s):
- CONF-970113-; TRN: 98:001739-0009
- Resource Relation:
- Conference: Field analytical methods for hazardous wastes and toxic chemicals conference, Las Vegas, NV (United States), 29-31 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of Field analytical methods for hazardous wastes and toxic chemicals; PB: 909 p.
- Country of Publication:
- United States
- Language:
- English
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