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Analysis of breath, exhaled via the mouth and nose, and the air in the oral cavity
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SYSNO ASEP 0314989 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Analysis of breath, exhaled via the mouth and nose, and the air in the oral cavity Title Analýza dechu exhalovaného ústy a nosem a vzduchu v dutině ústní Author(s) Wang, T. (GB)
Pysanenko, A. (GB)
Dryahina, Kseniya (UFCH-W) RID, ORCID
Španěl, Patrik (UFCH-W) RID, ORCID
Smith, D. (GB)Source Title Journal of Breath Research. - : Institute of Physics Publishing - ISSN 1752-7155
Roč. 2, - (2008), , 037013-1-13Number of pages 13 s. Language eng - English Country GB - United Kingdom Keywords analysis of breath ; oral cavity ; SIFT-MS Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA202/06/0776 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) DOI 10.1088/1752-7155/2/3/037013 Annotation Analyses have been performed, using on-line selected ion flow tube mass spectrometry (SIFT-MS), of the breath of three healthy volunteers, as exhaled via the mouth and the nose and also of the air in the oral cavity during breath hold, each morning over a period of one month. Nine trace compounds have been quantified and concentration distributions have been constructed. Of these compounds, the levels of acetone, methanol and isoprene are the same in the mouth-exhaled and the nose-exhaled breath; hence, we deduce that these compounds are totally systemic. The levels of ammonia, ethanol and hydrogen cyanide are much lower in the nose-exhaled breath than in the mouth-exhaled breath and highest in the oral cavity, indicating that these compounds are largely generated in the mouth with little being released at the alveolar interface. Using the same ideas, both the low levels of propanol and acetaldehyde in mouth-exhaled breath appear to have both oral and systemic components. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
Number of the records: 1