METHOD FOR MEASURING THE CONCENTRATION OF IMPURITIES IN NITROGEN, HYDROGEN AND OXYGEN BY MEANS OF ION MOBILITY SPECTROMETRY

摘要

A method for the quantitative analysis of the impurities content in nitrogen, hydrogen and oxygen by emans of ion mobility spectrometry is described, consisting in using argon, or a mixture containing no impurities and consisting of the gas which has to be analyzed and argon, as a counterflow gas in the separation zone of the ion mobility spectrometer.