Laser-induced breakdown spectroscopy (LIBS); an emerging field-portable sensor technology for real-time, in-situ geochemical and environmental analysis

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doi: 10.1144/1467-7873/03-059
Authors:Harmon, Russell S.; De Lucia, Frank C.; Miziolek, Andrzej W.; McNesby, Kevin L.; Walters, Roy A.; French, Patrick D.
Author Affiliations:Primary:
U. S. Army Research Office, Research Triangle Park, NC, United States
U. S. Army Research Laboratory, United States
Ocean Optics, United States
ADA Technologies, United States
Volume Title:Selected papers from the 6th international symposium on Environmental geochemistry
Volume Authors:Hall, G. E. M., editor
Source:Geochemistry - Exploration, Environment, Analysis, 5(1), p.21-28; 6th international symposium on Environmental geochemistry, Edinburgh, United Kingdom, Sept. 2003, edited by G. E. M. Hall. Publisher: Geological Society Publishing House, London, United Kingdom. ISSN: 1467-7873
Publication Date:2005
Note:In English. 41 refs.; illus.
Summary:Laser-induced breakdown spectroscopy (LIBS) is a simple spark spectrochemical sensor technology in which a laser beam is directed at a sample to create a high-temperature microplasma. A spectrometer/array detector is used to disperse the light emission and detect its intensity at specific wavelengths. LIBS has many attributes that make it an attractive tool for chemical analysis. A recent breakthrough in component development, the commercial launching of a small, high-resolution spectrometer, has greatly expanded the utility of LIBS and resulted in a new potential for field-portable broadband LIBS because the technique is now sensitive simultaneously to all chemical elements due to detector response in the 200 to 980 nm range with 0.1 nm spectral resolution. Other attributes include: (a) small size and weight; (b) technologically mature, inherently rugged, and affordable components; (c) in-situ analysis with no sample preparation required; (d) inherent high sensitivity; (e) real-time response; and (f) point sensing or standoff detection. LIBS sensor systems can be used to detect and analyse target samples by identifying all constituent elements and by determining either their relative or absolute abundances.
Sections:Apparatus and techniques
Subsections:Analytical geochemistry; Chemical, XRF, and other instrumental methods
Subjects:Applications; Environmental analysis; Geochemical methods; Laser methods; Lead; Metals; New methods; Pollutants; Pollution; Remediation; Soils; Spectroscopy; California; Lassen County California; United States; Sierra Army Depot; Soil sampling
Abstract Numbers:05M/1925
Record ID:2005026448
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
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