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A. A. Gorbatenko, R. D. Voronina, E. I. Revina

Analytical laser ionization spectrometry in flames. The selection of analytical form of rare-earth elements determination


Based on the ionization potential and the dissociation energy of the rare-earth elements monoxides, these molecules were divided into two groups. For the molecules of the first type, the dissociation energy exceeds the ionization potential. Laser excitation of these molecules leads to their predominant ionization. The molecules of the second type have the ionization potential greater than the dissociation energy. Depending on the absolute values of the latter atomic lines can be observed in the ionization spectrum. Elements, which form the molecules of the first type in a flame, should be determined as monoxide molecules. In the case of formation of the second type molecules, the determination in atomic form will give better results.
Moscow University Chemistry Bulletin.
2008, Vol. 49, No. 1, P. 66

Copyright (C) Chemistry Dept., Moscow State University, 2002
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