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The hydrogen content of atmospheric air at ground level
Author(s) -
Glueckauf E.,
Kitt G. P.
Publication year - 1957
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708335808
Subject(s) - hydrogen , volume (thermodynamics) , distilled water , analytical chemistry (journal) , trap (plumbing) , ground level , environmental science , materials science , chemistry , meteorology , environmental chemistry , thermodynamics , environmental engineering , physics , chromatography , architectural engineering , ground floor , organic chemistry , engineering
A method is described for the separation and determination of hydrogen in air samples of approximately 200 litres N.T.P. by volume. The hydrogen is fractionally distilled from the bulk of the sample, oxidized to water by passing over heated copper oxide and finally condensed in a trap cooled in liquid oxygen. After freeing from the contaminating gases by pumping, the water is released from the trap and measured as vapour in a small calibrated volume. Although the accuracy of the method in its present form is not better than ± 10 per cent, the results seem to indicate that the hydrogen content of atmospheric air is a varying quantity. The average hydrogen content of air at ground level is 0.6 parts per million.