Method for the collection and assay of volatile organic compounds in breath.

Exhaled human breath measurement method for assessing exposure to halogenated volatile organic compounds.

The organic constituents of exhaled human breath are representative of blood-borne concentrations through gas exchange in the blood/breath interface in the lungs. The presence of specific compounds can be an indicator of recent exposure or represent a biological response of the subject. For volatile organic compounds (VOCs), sampling and analysis of breath is preferred to direct measurement fro...

Ion-trap detection of volatile organic compounds in alveolar breath.

We describe a method for the collection and microanalysis of the volatile organic compounds in human breath. A transportable apparatus supplies subjects with purified air and samples their alveolar breath; the volatile organic compounds are captured in an adsorptive trap containing activated carbon and molecular sieve. The sample is thermally desorbed from the trap in an automated microprocesso...

Breath analysis as a technique in clinical chemistry.

Breath possesses unique advantages as a specimen for clinical chemical analyses, including the continuous equilibrium of gases and volatile substances between expired alveolar air and the pulmonary blood circulation. Substances amenable to analysis in breath include 02, C02, CO,and other gases, volatile organic compounds, and many drugs with sufficiently high vapor pressures at physiological te...

Identification of Volatile Organic Compounds from Trichoderma virens (6011) by GC-MS and Separation of a Bioactive Compound via Nanotechnology

Fungal volatile organic compounds (VOCs) have the potential of being used as biocontrol agents for biotechnological applications in agriculture, industry and medicine. In this research, different VOCs from secondary metabolites of biocontrol fungus Trichoderma virens (6011) KP671477 were separated using n-hexane, n-butanol and methanol solvents and identified by gas chromatography–mass spectrom...

Author's response to reviews Title: Standardised exhaled breath collection for the measurement of exhaled volatile organic compounds by proton transfer reaction mass spectrometry Authors: