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Proceedings Article

Different calibration strategies to overcome matrix effect in steel analysis by laser-induced breakdown spectroscopy

[+] Author Affiliations
Timur A. Labutin, Andrey M. Popov, Irina V. Seliverstova, Nikita B. Zorov

M.V. Lomonosov Moscow State Univ. (Russian Federation)

Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 799420 (February 16, 2011); doi:10.1117/12.881140
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From Conference Volume 7994

  • LAT 2010: International Conference on Lasers, Applications, and Technologies
  • Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov
  • Kazan, Russian Federation | August 23, 2010

abstract

Strong effect of steel hardness on the parameters of laser-induced plasma (e.g., temperature) and on the calibration curves for manganese and chromium in steels has been demonstrated. The presence of the inverse correlation between the steel hardness and the excitation temperature determined by Mn I lines was explained by the confinement of laser plasma with the crater walls. A new calibration strategy based on the summation of intensities for several lines of the analyte allowed one to reduce the effect of matrix, caused by mechanical properties, on the determination of chromium and manganese in steels. The advantages of this strategy are discussed in the article in comparison with the wellestablished approaches, such as an internal standard and single analytical line.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Timur A. Labutin ; Andrey M. Popov ; Irina V. Seliverstova and Nikita B. Zorov
"Different calibration strategies to overcome matrix effect in steel analysis by laser-induced breakdown spectroscopy", Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 799420 (February 16, 2011); doi:10.1117/12.881140; http://dx.doi.org/10.1117/12.881140


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