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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 30 — Oct. 20, 2003
  • pp: 6040–6046

Detection of trace elements in liquids by laser-induced breakdown spectroscopy with a Meinhard nebulizer

Akshaya Kumar, Fang Y. Yueh, Tracy Miller, and Jagdish P. Singh  »View Author Affiliations


Applied Optics, Vol. 42, Issue 30, pp. 6040-6046 (2003)
http://dx.doi.org/10.1364/AO.42.006040


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Abstract

The laser-induced breakdown spectroscopy of magnesium, manganese, and chromium atoms by use of a commercial Meinhard nebulizer originally designed for inductively coupled plasma measurements is described. This is the first time, to our knowledge, that this nebulizer has been used for laser-induced breakdown spectroscopy measurements. The limit of detection is slightly lower when the nebulizer rather than a liquid jet is used in single-pulse laser excitation. In addition we present the response characteristics of the nebulizer, such as effects of variations in purge gas and liquid flow rate, that are different from normal operating specifications. The effects of gate delay, gate width, and laser power variations were also studied. The objective of the present research has been to consider a new operating mode and conditions in which a better limit of detection of trace elements in water can be obtained.

© 2003 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.2140) Spectroscopy : Emission
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6360) Spectroscopy : Spectroscopy, laser

History
Original Manuscript: January 17, 2003
Revised Manuscript: May 29, 2003
Published: October 20, 2003

Citation
Akshaya Kumar, Fang Y. Yueh, Tracy Miller, and Jagdish P. Singh, "Detection of trace elements in liquids by laser-induced breakdown spectroscopy with a Meinhard nebulizer," Appl. Opt. 42, 6040-6046 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-30-6040


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References

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