Detection of lead in soil with excimer laser fragmentation fluorescence spectroscopy (ELFFS)
Journal Article
·
· Applied Spectroscopy
OSTI ID:840576
- LBNL Library
Excimer laser fragmentation fluorescence spectroscopy (ELFFS) is used to monitor lead in soil sample and investigate laser-solid interactions. Pure lead nitrate salt and soil doped with lead nitrate are photolyzed with 193 nm light from an ArF excimer at fluences from 0.4 to 4 J/cm{sup 2}. Lead emission is observed at 357.2, 364.0, 368.3, 373.9 and 405.8 nm. Time-resolved data show the decay time of the lead emission at 405.8 nm grows with increasing fluence, and a plasma is formed above fluences of 2 J/cm{sup 2}, where a strong continuum emission interferes with the analyte signal. Fluences below this threshold allow us to achieve a detection limit of approximately 200 ppm in soil.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 840576
- Report Number(s):
- LBNL--55741
- Journal Information:
- Applied Spectroscopy, Journal Name: Applied Spectroscopy Journal Issue: 2 Vol. 59
- Country of Publication:
- United States
- Language:
- English
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