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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 13 — May. 1, 2010
  • pp: C143–C152

Analysis of material collected on swipes using laser-induced breakdown spectroscopy

Rosemarie Chinni, David A. Cremers, and Rosalie Multari  »View Author Affiliations


Applied Optics, Vol. 49, Issue 13, pp. C143-C152 (2010)
http://dx.doi.org/10.1364/AO.49.00C143


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Abstract

Laser-induced breakdown spectroscopy (LIBS) was evaluated to determine elements collected on swipes as surface contamination. A series of long laser plasmas formed along the swipe surface (Post-it paper) interrogated the collected contamination. LIBS detection limits, determined for the elements Ag, As, Ba, Be, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Sr, and Zn on swipes ( 2 cm 2 area), ranged from 0.002 μg (Be) to 1.46 μg (Pb). The elements were introduced as constituents of synthetic silicate particles serving as a contaminant dust stimulant. The average predicted mass was within 16% of the actual mass on the swipe. The efficiency of collecting particles from surfaces including plastic, Formica, and Al metal was also evaluated. The ability to detect and differentiate two amino acids on a swipe from each other and from the swipe using chemometric modeling techniques was also demonstrated.

© 2010 Optical Society of America

OCIS Codes
(300.2140) Spectroscopy : Emission
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

History
Original Manuscript: October 2, 2009
Revised Manuscript: February 8, 2010
Manuscript Accepted: February 12, 2010
Published: March 16, 2010

Citation
Rosemarie Chinni, David A. Cremers, and Rosalie Multari, "Analysis of material collected on swipes using laser-induced breakdown spectroscopy," Appl. Opt. 49, C143-C152 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-13-C143

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