Highly Selective Volatile Organic Compounds Breath Analysis Using a Broadly-Tunable Vertical-External-Cavity Surface-Emitting Laser.

Détails

ID Serval
serval:BIB_83069C174504
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Highly Selective Volatile Organic Compounds Breath Analysis Using a Broadly-Tunable Vertical-External-Cavity Surface-Emitting Laser.
Périodique
Analytical chemistry
Auteur(s)
Tuzson B., Jágerská J., Looser H., Graf M., Felder F., Fill M., Tappy L., Emmenegger L.
ISSN
1520-6882 (Electronic)
ISSN-L
0003-2700
Statut éditorial
Publié
Date de publication
20/06/2017
Peer-reviewed
Oui
Volume
89
Numéro
12
Pages
6377-6383
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
A broadly tunable mid-infrared vertical-external-cavity surface-emitting laser (VECSEL) is employed in a direct absorption laser spectroscopic setup to measure breath acetone. The large wavelength coverage of more than 30 cm <sup>-1</sup> at 3.38 μm allows, in addition to acetone, the simultaneous measurement of isoprene, ethanol, methanol, methane, and water. Despite the severe spectral interferences from water and alcohols, an unambiguous determination of acetone is demonstrated with a precision of 13 ppbv that is achieved after 5 min averaging at typical breath mean acetone levels in synthetic gas samples mimicking human breath.
Mots-clé
Breath Tests, Humans, Lasers, Surface Properties, Volatile Organic Compounds/analysis
Pubmed
Web of science
Création de la notice
04/09/2017 18:14
Dernière modification de la notice
08/04/2019 6:26
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