Advancing the Sensitivity of Highly Selective Gas Analysis by the Example of Carbon Monoxide Molecules

We present the results of experiments on detection of carbon monoxide (CO molecules) in atmospheric and exhaled air using a microwave spectrometer with sensitivity 1000 times lower than the CO detection threshold in the atmosphere. A modification of the spectrometer by adding a simple and easy-to-us...

Full description

Saved in:
Bibliographic Details
Published inRadiophysics and quantum electronics Vol. 67; no. 7; pp. 536 - 545
Main Authors Belov, S. P., Golubiatnikov, G. Yu, Leonov, I. I., Galanina, T. A., Tretyakov, M. Yu
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2024
Springer Nature B.V
Subjects
Astronomy
Astrophysics and Astroparticles
Carbon monoxide
Dehumidification
Gas analysis
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
Microwave spectrometers
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Quantum Optics
Sensitivity analysis
Theoretical
Online AccessGet full text

Cover

More Information
Summary:We present the results of experiments on detection of carbon monoxide (CO molecules) in atmospheric and exhaled air using a microwave spectrometer with sensitivity 1000 times lower than the CO detection threshold in the atmosphere. A modification of the spectrometer by adding a simple and easy-to-use device (preconcentrator) allowed us to increase the sensitivity of gas analysis by 5 orders of magnitude and confidently observe CO in the atmosphere and exhaled air. Combined with a filter performing deep dehumidification of an analyzed air sample without noticeable distortion of the composition of the polar impurity gases, the preconcentrator may be used to increase the sensitivity of many if not all currently known gas analysis methods.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-025-10395-2