About: Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days.

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About: Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A study of the concentrations of the common breath metabolites ammonia, acetone, isoprene, ethanol and acetaldehyde in the breath of five subjects over a period of 30 days has been carried out. Breath samples were taken and analysed in the early morning on arrival at the laboratory. The real time analyses of three consecutive breath exhalations were carried out using selected ion flow tube mass spectrometry (SIFT-MS) on line to the instrument. Sufficient data were obtained to allow meaningful concentration distributions to be obtained for ammonia, acetone, isoprene and ethanol. These showed that the ammonia, acetone and isoprene concentrations exhibited sensibly normal distributions, with coefficients of variation of typically 0.3. Obvious and statistically significant (p < 0.01) differences are apparent in the mean concentrations of these metabolites between the five individuals. The acetaldehyde concentrations were relatively low and close to the instrument detection limit. A study of the concentrations of the common breath metabolites ammonia, acetone, isoprene, ethanol and acetaldehyde in the breath of five subjects over a period of 30 days has been carried out. Breath samples were taken and analysed in the early morning on arrival at the laboratory. The real time analyses of three consecutive breath exhalations were carried out using selected ion flow tube mass spectrometry (SIFT-MS) on line to the instrument. Sufficient data were obtained to allow meaningful concentration distributions to be obtained for ammonia, acetone, isoprene and ethanol. These showed that the ammonia, acetone and isoprene concentrations exhibited sensibly normal distributions, with coefficients of variation of typically 0.3. Obvious and statistically significant (p < 0.01) differences are apparent in the mean concentrations of these metabolites between the five individuals. The acetaldehyde concentrations were relatively low and close to the instrument detection limit. (en)
Title	Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days. Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days. (en)
skos:prefLabel	Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days. Time Variation of Ammonia. Acetone, Isoprene and Ethanol in Breath: A Quantitative SIFT-MS Study over 30 Days. (en)
skos:notation	RIV/61388955:_____/03:54030042!RIV/2004/AV0/A54004/N
http://linked.open.../vavai/riv/strany	107;119
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/00/0632), P(GA203/02/0737), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Španěl, Patrik
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	631044
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/03:54030042
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SIFT-MS study; acetone; isoprene (en)
http://linked.open.../riv/klicoveSlovo	isoprene acetone SIFT-MS study
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[3E5D3241E6CA]
http://linked.open...i/riv/nazevZdroje	Physiological Measurement
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Chemistry of ions in the gaseous phase and ion-surface collisions Mass spectrometric and theoretical characterization of transient molecules
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	24
http://linked.open...iv/tvurceVysledku	Smith, D. Španěl, Patrik Diskin, A. M.
http://linked.open...n/vavai/riv/zamer	Objasňování zákonitostí vztahů struktury a vlastností - zejména dynamiky a chemické reaktivity - látek a molekulárních systémů
issn	0967-3334
number of pages	13 (xsd:int)

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