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An optical system for measuring nitric oxide using spectral separation techniques

Zhang, Y. G.; Somesfalean, Gabriel LU ; Guo, W.; Wang, H. S.; Wu, S. H.; Qin, Y. K. and Zhang, Z. G. (2012) In Applied Physics B 107(2). p.435-440
Abstract
An optical sensor based on differential absorption spectroscopy for real-time monitoring of industrial nitric oxide (NO) gas emission is described. The influence of gas absorption interference from sulfur dioxide (SO2) in the environment was considered and a spectral separation technique was developed in order to eliminate this interference effect. The absorption spectrum of SO2 around 226 nm was evaluated by the SO2 concentration obtained using the experimentally recorded absorption spectrum around 300 nm. The absorption spectrum of NO around 226 nm was obtained by subtracting the absorption of SO2 from the integral absorption spectrum of SO2 and NO. The concentration measurements were performed at atmospheric pressure. The technique was... (More)
An optical sensor based on differential absorption spectroscopy for real-time monitoring of industrial nitric oxide (NO) gas emission is described. The influence of gas absorption interference from sulfur dioxide (SO2) in the environment was considered and a spectral separation technique was developed in order to eliminate this interference effect. The absorption spectrum of SO2 around 226 nm was evaluated by the SO2 concentration obtained using the experimentally recorded absorption spectrum around 300 nm. The absorption spectrum of NO around 226 nm was obtained by subtracting the absorption of SO2 from the integral absorption spectrum of SO2 and NO. The concentration measurements were performed at atmospheric pressure. The technique was found to have a lower detection limit of 0.8 ppm for NO per meter path length (SNR=2) and be immune from the influence from SO2 on the NO measurement. The sensor based on this technique was successfully employed for in situ measurement of SO2 and NO concentrations in the flue gas emitted from an industrial coal-fired boiler. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics B
volume
107
issue
2
pages
435 - 440
publisher
Springer
external identifiers
  • wos:000304166900026
  • scopus:84861814192
ISSN
0946-2171
DOI
10.1007/s00340-012-4965-1
language
English
LU publication?
yes
id
75e9b2e7-d76f-4d14-b0af-15eb1f21e18d (old id 2809464)
date added to LUP
2012-06-25 10:46:18
date last changed
2017-01-01 03:22:40
@article{75e9b2e7-d76f-4d14-b0af-15eb1f21e18d,
  abstract     = {An optical sensor based on differential absorption spectroscopy for real-time monitoring of industrial nitric oxide (NO) gas emission is described. The influence of gas absorption interference from sulfur dioxide (SO2) in the environment was considered and a spectral separation technique was developed in order to eliminate this interference effect. The absorption spectrum of SO2 around 226 nm was evaluated by the SO2 concentration obtained using the experimentally recorded absorption spectrum around 300 nm. The absorption spectrum of NO around 226 nm was obtained by subtracting the absorption of SO2 from the integral absorption spectrum of SO2 and NO. The concentration measurements were performed at atmospheric pressure. The technique was found to have a lower detection limit of 0.8 ppm for NO per meter path length (SNR=2) and be immune from the influence from SO2 on the NO measurement. The sensor based on this technique was successfully employed for in situ measurement of SO2 and NO concentrations in the flue gas emitted from an industrial coal-fired boiler.},
  author       = {Zhang, Y. G. and Somesfalean, Gabriel and Guo, W. and Wang, H. S. and Wu, S. H. and Qin, Y. K. and Zhang, Z. G.},
  issn         = {0946-2171},
  language     = {eng},
  number       = {2},
  pages        = {435--440},
  publisher    = {Springer},
  series       = {Applied Physics B},
  title        = {An optical system for measuring nitric oxide using spectral separation techniques},
  url          = {http://dx.doi.org/10.1007/s00340-012-4965-1},
  volume       = {107},
  year         = {2012},
}