Detection of nitric oxide in exhaled air using cavity enhanced absorption spectroscopy
2013
The article describes an application one of the most sensitive optoelectronic method – Cavity Enhanced Absorption
Spectroscopy in investigation of nitric oxide in exhaled breath. Measurement of nitric oxide concentration in exhaled
breath is a quantitative, non-invasive, simple, and safe method of respiratory inflammation and asthma diagnosis. For
detection of nitric oxide by developed optoelectronic sensor the vibronic molecular transitions were used. The
wavelength ranges of these transitions are situated in the infrared spectral region. A setup consists of the optoelectronic
nitric oxide sensor integrated with sampling and sample conditioning unit. The constructed detection system provides to
measure nitric oxide in a sample of 0-97% relative humidity.
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