… The simultaneous analysis of several breath trace gases during a single exhalation is
clearly demonstrated, and thus different elution times for isoprene and methanol along the …

… , which can enhance their concentrations in exhaled breath, has been carried out using
on-line … on exhaled breath ammonia is 0.5 for nose-exhaled and 0.7 for mouth-exhaled breath. …

… the temperature of the exhaled breath and the bronchial blood flow, the FeNO levels, and …
correlating with parallel peak expiratory flow measurements. Software improvements would …

… ion monitoring mode of the Profile 3 selected ion flow tube MS instrument, indicating the
breath-to-breath … nose-exhaled breath and in the oral cavity using selected ion flow tube mass …

… in exhaled breath can be erroneously elevated by a factor of 1.05 to 1.08 for the sample flow
… 2 content of exhaled breath; more will be said about this important point later in this paper. …

… of exhaled breath can be realized obviating sample collection; these include selected ion
flow … features and advantages of which for breath analysis have recently been compared and …

… ion flow tube mass spectrometry (SIFT-MS) has been applied for the quantification of VOCs
in the exhaled breath … The analysis of exhaled breath through the detection and accurate …

… in breath to a clinically acceptable accuracy using the recently developed selected ion flow
… , on-line real-time analyses of single breath exhalations can be achieved down to the parts-…

… ethanol and methanol levels in exhaled breath calculated using the ion signal ratios of the
precursor ions (H 3 O + ) and their hydrates and the characteristic product ions of ethanol (C 2 …

… of exhaled breath and the headspace of urine from cancer patients in search of volatile
molecular biomarkers of tumours, we observed that acetonitrile appeared in the exhaled breath …