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Applied Spectroscopy

Applied Spectroscopy

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  • Vol. 54, Iss. 8 — Aug. 1, 2000
  • pp: 1231–1235

Analysis of Lignite Using Laser-Induced Breakdown Spectroscopy

Fiona J. Wallis, Bruce L. Chadwick, and Richard J. S. Morrison

Applied Spectroscopy, Vol. 54, Issue 8, pp. 1231-1235 (2000)


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Abstract

The application of laser-induced breakdown spectroscopy (LIBS) to the chemical analysis of low-ash lignite has been investigated. A Nd:YAG laser (λ = 1064 nm) is used to induce emission from the ash-forming components, which is then spectrally resolved and analyzed. LIBS analyses of five inorganic components of lignite were shown to be reproducible between sample pellets at a 95% confidence level. Detection limits (in ppm) on an as-received basis of 60 (Ca and Al), 70 (Na), 90 (Fe), and 200 (Mg and Si) were obtained from a study of 30 lignite samples, each of which was interrogated by 300 laser pulses.

Citation
Fiona J. Wallis, Bruce L. Chadwick, and Richard J. S. Morrison, "Analysis of Lignite Using Laser-Induced Breakdown Spectroscopy," Appl. Spectrosc. 54, 1231-1235 (2000)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-54-8-1231


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