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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: C75–C79

Guided conversion to enhance cation detection in water using laser-induced breakdown spectroscopy

Yuan Lu, Ying Li, Jianglai Wu, Shilei Zhong, and Ronger Zheng  »View Author Affiliations


Applied Optics, Vol. 49, Issue 13, pp. C75-C79 (2010)
http://dx.doi.org/10.1364/AO.49.000C75


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Abstract

A novel approach, named guided conversion enhancement, has been established to improve the laser-induced breakdown spectroscopy (LIBS) sensitivity of cation detection in water. Two processes were involved in this approach: the main part was replacement reaction that converted the cations in water to solid granules on the surface of an immersed metallic sheet; the other was electric assistance that increased local cation concentration and strengthened the reaction. With the aid of replacement reaction and an electric field, a detection limit of 16 ppb was achieved for copper cation ( Cu 2 + ) detection in a water solution of Cu SO 4 . The obtained results suggest that this approach has significant potential to be developed as an effective method for underwater cation detection.

© 2010 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6210) Spectroscopy : Spectroscopy, atomic
(350.5400) Other areas of optics : Plasmas
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

History
Original Manuscript: September 30, 2009
Revised Manuscript: February 1, 2010
Manuscript Accepted: February 1, 2010
Published: March 3, 2010

Citation
Yuan Lu, Ying Li, Jianglai Wu, Shilei Zhong, and Ronger Zheng, "Guided conversion to enhance cation detection in water using laser-induced breakdown spectroscopy," Appl. Opt. 49, C75-C79 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-13-C75

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