Characterization of Trace Amounts of Odorants (Sulfur Compounds, Oxygenates, Hydrocarbons, Phenols and Lower Fatty Acids) in Air in an ICU Room

摘要: Characterization of trace amounts odorants in air an ICU room (ca. 257m2) was carried out by gas chromatography and atmospheric pressure ionization-mass spectrometry (API-MS). The concentrations odor recognition threshold values the detected odorants, acetaldehyde, ethanol, n-butyric acid, iso-valeric acid n-valeric are as follows: 44.7ppb 15ppb; 19710ppb 6100ppb; 0.50ppb 0.4ppb; 0.45ppb 0.67ppb 0.5ppb, respectively. these were significantly higher than values. compounds may, therefore, be responsible for perception such odors mixed odors, body odor, faint or recognizable alcoholic disinfectant sour, pungent, goaty odors.