- Abstract:
-
A robust method is demonstrated to measure acetone in human breath at sub parts-per-million by volume (ppmv) concentrations using diode laser cavity enhanced absorption spectroscopy. The laser operates in the near-infrared at about 1690 nm probing overtone transitions in acetone in a spectral region relatively free from interference from common breath species such as CO2, water, and methane. Using an optical cavity with a length of 45 cm, bound by mirrors of 99.997% reflectivity, a limit of d...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1021/ac500614n
-
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- Journal:
- Analytical chemistry
- Volume:
- 86
- Issue:
- 12
- Pages:
- 5838-5843
- Publication date:
- 2014-06-05
- DOI:
- EISSN:
-
1520-6882
- ISSN:
-
0003-2700
- URN:
-
uuid:084bb74f-b755-49c9-b211-1bed4a3a4e3e
- Source identifiers:
-
465982
- Local pid:
- pubs:465982
- Language:
- English
- Copyright date:
- 2014
Journal article
Laser-based method and sample handling protocol for measuring breath acetone.
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