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Influence of Water Vapour on Selected Ion Flow Tube Mass Spectrometric Analyses of Trace Gases in Humid Air and Breath

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    SYSNO ASEP0180979
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleInfluence of Water Vapour on Selected Ion Flow Tube Mass Spectrometric Analyses of Trace Gases in Humid Air and Breath
    Author(s) Španěl, Patrik (UFCH-W) RID, ORCID
    Smith, D. (GB)
    Source TitleRapid Communications in Mass Spectrometry. - : Wiley - ISSN 0951-4198
    Roč. 14, - (2000), s. 1898-1906
    Languageeng - English
    CountryGB - United Kingdom
    Subject RIVCF - Physical ; Theoretical Chemistry CF - Physical ; Theoretical Chemistry
    R&D ProjectsGA203/00/0632 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z4040901 - UFCH-W
    A54/98:Z4-040-9-ii
    AnnotationSelected ion flow tube mass spectrometry, SIFT-MS, detects and quantifies in real time the trace gases, M, in air/breath samples introduced directly into a flow tube.When H 3 O + ions are used as the precursors for chemical ionisation and SIFT-MS analyses of M, they generally result in the formation of MH+ ions.H 3 O + i ions are partially converted to hydrated hydronium ions, H 3 O + .(H 2 O)1,2,3. Fundamental data have been obtained on the assotiation reactions of protonated organic molecules, MH+ions, with H 2 O.
    WorkplaceJ. Heyrovsky Institute of Physical Chemistry
    ContactMichaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
    Year of Publishing2001

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