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| Description
| - Thirty volunteers (19 males, 11 females) were recruited for a 6-month study of the volatile compounds in their exhaled breath using the selected ion flow tube mass spectrometry (SIFT-MS) analytical technique. Volunteers provided weekly breath samples between 8:45 am and I pm (before lunch), and the concentrations of several trace compounds were obtained. In this paper, we focus on the isoprene in alveolar breath, which was monitored by SIFT-MS using NO+ precursor ions. The mean isoprene level for all samples was 118 parts per billion (ppb) with a standard deviation of 68 ppb and the range of values for breath samples given is 0-474 ppb. Variability in isoprene levels was similar in most volunteers. Isoprene levels increased immediately after moderate exercise, but returned to normal within 2-3 min for those few volunteers that were investigated. Cholesterol levels analysed for only three of the subjects were not obviously correlated with isoprene concentration in breath.
- Thirty volunteers (19 males, 11 females) were recruited for a 6-month study of the volatile compounds in their exhaled breath using the selected ion flow tube mass spectrometry (SIFT-MS) analytical technique. Volunteers provided weekly breath samples between 8:45 am and I pm (before lunch), and the concentrations of several trace compounds were obtained. In this paper, we focus on the isoprene in alveolar breath, which was monitored by SIFT-MS using NO+ precursor ions. The mean isoprene level for all samples was 118 parts per billion (ppb) with a standard deviation of 68 ppb and the range of values for breath samples given is 0-474 ppb. Variability in isoprene levels was similar in most volunteers. Isoprene levels increased immediately after moderate exercise, but returned to normal within 2-3 min for those few volunteers that were investigated. Cholesterol levels analysed for only three of the subjects were not obviously correlated with isoprene concentration in breath. (en)
- Hmotnostní spektrometrie v proudové trubici s vybranými ionty, SIFT-MS byla použita pro monitorování těkavých látek ve vydechovaném vzduchu 30 dobrovolníků (19 mužů, 11 žen) po dobu šesti měsíců. Dobrovolníci poskytli vzorky dechu každý týden mezi 8:45 a 13:00 vždy ale před obědem. Tento článek se zaměřuje na měření izoprénu v dechu s použitím prekurzorů NO+. Průměr měřených koncentrací byl 68 miliardtin objemu, a rozsah hodnot byl od neměřitelných hodnot do 474 miliardtin. Izoprén v dechu přímo nekoreluje s věkem pohlavím ani indexem tělěsné hmotnosti. (cs)
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| Title
| - A longitudinal study of breath isoprene in healthy volunteers using selected ion flow tube mass spectrometry (SIFT-MS)
- Longitudinální studie izoprénu v dechu zdravých dobrovolníků s použitím hmotnostní spektrometrie v proudové trubici s vybranými ionty (cs)
- A longitudinal study of breath isoprene in healthy volunteers using selected ion flow tube mass spectrometry (SIFT-MS) (en)
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| skos:prefLabel
| - A longitudinal study of breath isoprene in healthy volunteers using selected ion flow tube mass spectrometry (SIFT-MS)
- Longitudinální studie izoprénu v dechu zdravých dobrovolníků s použitím hmotnostní spektrometrie v proudové trubici s vybranými ionty (cs)
- A longitudinal study of breath isoprene in healthy volunteers using selected ion flow tube mass spectrometry (SIFT-MS) (en)
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| skos:notation
| - RIV/61388955:_____/06:00078426!RIV07-AV0-61388955
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/06:00078426
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - breath analysis; metabolites; ammonia; acetone (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Physiological Measurement
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Smith, D.
- Španěl, Patrik
- Turner, C.
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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