Abstract
IN the first of a course of three lectures arranged by the University of London and delivered on November 14 at the Imperial College, South Kensington, Prof. Fritz Paneth, until lately director of the Chemical Institute at Konigsberg, described the micro-methods now available for the determination of helium. The special experimental technique evolved in the Konigsberg laboratories permits the qualitative detection of so small a quantity of helium as 10˜9-10˜10 c.c., and the quantitative estimation, with an uncertainty of about 1 per cent, of 10˜B c.c. Prof. Paneth discussed briefly the various problems in the solution of which this refined radium technique has been or may be employed-such as the concentration of helium in the stratosphere, the age of minerals, particularly those derived from the Kim-berley diamond pipes, the origin of meteorites, and sundry questions connected with natural or artificial transmutation. The further lectures of this course, to be delivered on November 21 and 28, will be devoted to the consideration of the age and origin of meteorites, and the chemical detection of transmutation.
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Micro-Methods for the Determination of Helium. Nature 132, 777 (1933). https://doi.org/10.1038/132777a0
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DOI: https://doi.org/10.1038/132777a0