Abstract
THE spectrum of selenium obtained by the condensed discharge is much more complicated than that of sulphur under the same condition of excitation. Of the existing data on the subject, Misserschmitt's list of lines given in vol. 6 of “Handbuch der Spectroscopie” by Kayser and Runge appears to be fairly complete, but the abundance of lines in his list and inaccurate values of their intensities were rather perplexing. Bloch's recent record of a few Se++ and Se+++ lines (Comptes rendus, T. 183, p. 762), and the photographs obtained in this laboratory with a prism spectrograph and a ten-foot concave grating under varying conditions of excitation, have been found to be promising in sorting out lines of Se+.
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BHATTACHARJYA, D. Second Spark Spectrum of Selenium (Se++). Nature 124, 229 (1929). https://doi.org/10.1038/124229c0
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DOI: https://doi.org/10.1038/124229c0
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