zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-824Research ArticleСтатьиИзмерения относительной интенсивности спектров излучения галогенидов щелочных металлов и их применение в элементном анализе минераловRelative Intensity Measurements of LIBS Emission Spectra of Alkali Halides and Their Application to Elemental Analysis of Mineralogical SamplesDuerstM. D.DuerstM. D.

WI 54017.

River Falls WI 54017.

rmduerst@frontiernet.netDuerstR. W.DuerstR. W.

WI 54017.

River Falls WI 54017.

Университет Висконсин-Ривер-ФолсUniversity of Wisconsin-River Falls, Department of Chemistry and Biotechnology202129052021883426431Copyright © Duerst M.D., Duerst R.W., 20212021Duerst M.D., Duerst R.W.Duerst M.D., Duerst R.W.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/824

Зарегистрированы LIBS-спектры 20 щелочных галогенидов. Определены интенсивности наиболее сильных линий излучения Li, Na, K, Rb, Cs, F, Cl, Br, I и соотнесены с электронными переходами. Показано, что максимальные интенсивности линий галогенов по меньшей мере на два порядка меньше, чем у щелочных металлов, т. е. галогены трудно обнаружить и идентифицировать. Относительные соотношения интенсивностей излучения галогена и щелочного металла помогают идентифицировать указанные неметаллы, особенно в минералогических образцах.

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.

лазерно-искровая эмиссионная спектроскопияэлектронный переходминералlaser induced breakdown spectroscopyelectronic transitionsmineralogical samplesThe 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.ReferencesHandbook of Chemistry and Physics, CRC Press, 37th Ed., 1955-1956 and 50th Ed., 1969-1970.Handbook of Chemistry and Physics, CRC Press, 37th Ed., 1955-1956 and 50th Ed., 1969-1970.A. Kramida, Yu. Ralchenko, J. Reader, and NIST ASD Team (2019). NIST Atomic Spectra Database (ver. 5.7.1). [Online]. Available: https://physics.nist.gov/asd[2020]. National Institute of Standards and Technology, Gaithersburg MD.A. Kramida, Yu. Ralchenko, J. Reader, and NIST ASD Team (2019). NIST Atomic Spectra Database (ver. 5.7.1). [Online]. Available: https://physics.nist.gov/asd[2020]. National Institute of Standards and Technology, Gaithersburg MD.https://www.arl.army.mil/who-we-are/directorates/wmrd/libshttps://www.arl.army.mil/who-we-are/directorates/wmrd/libsUnited States Patent # 9,714,864 B2, “LIBS Analysis System,” 2017, by David R. Day, Konstantin Der-man, John F. Egan, and Paul E. Soucy; applicant: SciAps, Inc., Woburn, MA (US).United States Patent # 9,714,864 B2, “LIBS Analysis System,” 2017, by David R. Day, Konstantin Der-man, John F. Egan, and Paul E. Soucy; applicant: SciAps, Inc., Woburn, MA (US).Marilyn D. Duerst, In: Chemistry's Role in Food Production and Sustainability: Past and Present, ACS book publication (2020).Marilyn D. Duerst, In: Chemistry's Role in Food Production and Sustainability: Past and Present, ACS book publication (2020).

The authors declare that there are no conflicts of interest present.