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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 10 — Apr. 1, 2012
  • pp: 1552–1557

Detection of chromium in wastewater from refuse incineration power plant near Poyang Lake by laser induced breakdown spectroscopy

Mingyin Yao, Jinlong Lin, Muhua Liu, and Yuan Xu  »View Author Affiliations


Applied Optics, Vol. 51, Issue 10, pp. 1552-1557 (2012)
http://dx.doi.org/10.1364/AO.51.001552


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Abstract

A laser induced breakdown spectroscopy (LIBS) system was developed for determination of toxic metals Cr in wastewater collected from a refuse incineration power plant near Poyang Lake. The plasma was generated by focusing a pulsed Nd:YAG laser at 1064 nm on the surface of liquid. Experimental conditions were optimized for improving the sensitivity and repeatability of the LIBS system through a parametric dependence study in potassium bichromate (K2Cr2O7) aqueous solutions. Calibration curves for Cr I 425.43 and 357.87 nm lines are compared and the limit of detection is found to be 39 and 86 ppm, respectively. This calibration curve of Cr I 425.43 nm has been used for quantification of Cr in wastewater collected from a refuse incineration power plant near Poyang Lake where the concentration of Cr is found to be 97 ppm. The results between LIBS and standard analytical technique such as atomic absorption spectroscopy were compared, and the relative standard deviation was 8.5%.

© 2012 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
(300.6360) Spectroscopy : Spectroscopy, laser
(350.5400) Other areas of optics : Plasmas

ToC Category:
Spectroscopy

History
Original Manuscript: November 8, 2011
Revised Manuscript: January 15, 2012
Manuscript Accepted: January 20, 2012
Published: March 29, 2012

Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Mingyin Yao, Jinlong Lin, Muhua Liu, and Yuan Xu, "Detection of chromium in wastewater from refuse incineration power plant near Poyang Lake by laser induced breakdown spectroscopy," Appl. Opt. 51, 1552-1557 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-10-1552

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