Highly Selective Volatile Organic Compounds Breath Analysis Using a Broadly-Tunable Vertical-External-Cavity Surface-Emitting Laser.
- Tuzson B Laboratory for Air Pollution and Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf, Switzerland.
- Jágerská J Laboratory for Air Pollution and Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf, Switzerland.
- Looser H Institute for Aerosol and Sensor Technology, Fachhochschule Nordwestschweiz (FHNW) , 5210 Windisch, Switzerland.
- Graf M Laboratory for Air Pollution and Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf, Switzerland.
- Felder F Camlin Technologies AG , 8005 Zürich, Switzerland.
- Fill M Camlin Technologies AG , 8005 Zürich, Switzerland.
- Tappy L Faculty of Biology and Medicine, Department of Physiology, Universite de Lausanne (UNIL) , 1005 Lausanne, Switzerland.
- Emmenegger L Laboratory for Air Pollution and Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology (Empa) , 8600 Dübendorf, Switzerland.
- 2017-05-18
Published in:
- Analytical chemistry. - 2017
English
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-1 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.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1021/acs.analchem.6b04511
- PMID 28514136
- Persistent URL
- https://sonar.ch/global/documents/46336
Statistics
Document views: 28
File downloads:
- Full-text: 0