Application of ion chemistry and the SIFT technique to the quantitative analysis of trace gases in air and on breath
作者： David Smith , Patrik Španěl
DOI: 10.1080/01442359609353183
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摘要: Abstract Our major objective in this paper is to describe a new method we have developed for the analysis of trace gases at partial pressures down ppb level atmospheric air, with special emphasis on detection and quantification human breath. It involves use our selected ion flow tube (Sift) technique which previously used extensively study gas phase ionic reactions occurring ionized media such as terrestrial atmosphere interstellar clouds. Before discussing analytical results very recent Sift flowing afterglow (FA) studies H3O+ OH− ions, their hydrates H3O+(H2O)1,2,3 (H2O)1,2, NO+ O2 +, several hydrocarbons oxygen-bearing organic molecules, that are relevant studies. Then follows detailed discussion application analysis, after presen...
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