Abstract
THE separation of these gases from each other was effected by collecting them in a bulb in the solid state and allowing the solid gradually to evaporate at as low a temperature as possible, while the vapour was continually pumped away with a mercurial pump. Between the bulb containing the solidified gases and the pump a sparking tube was interposed, where the spectrum emitted by the vapour under the influence of an electric discharge was from time to time observed.
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On the Separation of the Least Volatile Gases of Atmospheric Air, and their Spectra 1 . Nature 64, 294–295 (1901). https://doi.org/10.1038/064294a0
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DOI: https://doi.org/10.1038/064294a0