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Updated: May 22, 2026

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Fast and Accurate Exhaled Breath Ammonia Measurement
Published on: June 11, 2014
Human biomarkers in breath by photoacoustic spectroscopy
M J Navas1, A M Jiménez, A G Asuero
1Department of Analytical Chemistry, Faculty of Pharmacy, University of Seville, Seville, Spain. navas@us.es
Abstract:
Photoacoustic spectrometry provides a novel approach to the analysis of human breath biomarkers. This unique methodology has specific applications for determination of ethylene oxide, nitrous oxide, ammonia as well as other compounds of interest including sevoflurane, halothane, isoflurane, methane, ethane and propofol. The advantages and disadvantages of photoacoustic spectrometry for this purpose are evaluated.

