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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 ASEP 0180979 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Influence 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 Title Rapid Communications in Mass Spectrometry. - : Wiley - ISSN 0951-4198
Roč. 14, - (2000), s. 1898-1906Language eng - English Country GB - United Kingdom Subject RIV CF - Physical ; Theoretical Chemistry CF - Physical ; Theoretical Chemistry R&D Projects GA203/00/0632 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z4040901 - UFCH-W A54/98:Z4-040-9-ii Annotation Selected 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. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2001
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