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Relative Intensity Measurements of LIBS Emission Spectra of Alkali Halides and Their Application to Elemental Analysis of Mineralogical Samples
Abstract
LIBS spectra were obtained for 20 alkali halides using a hand-held instrument. The intensities of the strongest emission lines were determined for Li, Na, K, Rb, Cs, F, Cl, Br, and I, and their corresponding electronic transitions assigned. Halogen peak intensities are observed to be at least two orders of magnitude smaller than those of the alkali metals. Thus, halogens are difficult to detect and identify with certainty. Relative intensity ratios of halogen/alkali metal aid in identification of those non-metals, particularly in mineralogical samples.
Supporting agencies: The authors wish to acknowledge the Department of Chemistry and Biotechnology at the University of Wisconsin-River Falls for providing some of the alkali halide salts for this study and for the use of their laboratory fume hood for the melting of some of the powdered and deliquescent samples. We also thank Dr. Alexander Kramida and Dr. Yuri Ralchenko of NIST for helpful discussions.
About the Authors
M. D. Duerst
University of Wisconsin-River Falls, Department of Chemistry and Biotechnology
United States
United States
River Falls WI 54017.
R. W. Duerst
University of Wisconsin-River Falls, Department of Chemistry and Biotechnology
United States
United States
River Falls WI 54017.
References
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Review
For citations:
Duerst M.D., Duerst R.W. Relative Intensity Measurements of LIBS Emission Spectra of Alkali Halides and Their Application to Elemental Analysis of Mineralogical Samples. Zhurnal Prikladnoii Spektroskopii. 2021;88(3):426-431.
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