OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 24 — Aug. 20, 2001
  • pp: 4395–4403

Measurements of NH3 and CO2 with distributed-feedback diode lasers near 2.0 µm in bioreactor vent gases

Michael E. Webber, Ricardo Claps, Florian V. Englich, Frank K. Tittel, Jay B. Jeffries, and Ronald K. Hanson  »View Author Affiliations


Applied Optics, Vol. 40, Issue 24, pp. 4395-4403 (2001)
http://dx.doi.org/10.1364/AO.40.004395


View Full Text Article

Enhanced HTML    Acrobat PDF (211 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Measurements of NH3 and CO2 were made in bioreactor vent gases with distributed-feedback diode-laser sensors operating near 2 µm. Calculated spectra of NH3 and CO2 were used to determine the optimum transitions for interrogating with an absorption sensor. For ammonia, a strong and isolated absorption transition at 5016.977 cm-1 was selected for trace gas monitoring. For CO2, an isolated transition at 5007.787 cm-1 was selected to measure widely varying concentrations [500 parts per million (ppm) to 10%], with sufficient signal for low mole fractions and without being optically thick for high mole fractions. Using direct absorption and a 36-m total path-length multipass flow-through cell, we achieved a minimum detectivity of 0.25 ppm for NH3 and 40 ppm for CO2. We report on the quasi-continuous field measurements of NH3 and CO2 concentration in bioreactor vent gases that were recorded at NASA Johnson Space Center with a portable and automated sensor system over a 45-h data collection window.

© 2001 Optical Society of America

OCIS Codes
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6390) Spectroscopy : Spectroscopy, molecular

History
Original Manuscript: December 4, 2000
Revised Manuscript: April 17, 2001
Published: August 20, 2001

Citation
Michael E. Webber, Ricardo Claps, Florian V. Englich, Frank K. Tittel, Jay B. Jeffries, and Ronald K. Hanson, "Measurements of NH3 and CO2 with distributed-feedback diode lasers near 2.0 µm in bioreactor vent gases," Appl. Opt. 40, 4395-4403 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-24-4395


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. G. M. Kirby, “Advanced water recovery system (WRS) integrated test plan,” (NASA Lyndon B. Johnson Space Center, Houston, Tex., 2000).
  2. R. Claps, F. V. Englich, D. P. Leleux, D. Richter, F. K. Tittel, R. F. Curl, “Ammonia detection by use of near-infrared diode-laser-based overtone spectroscopy,” Appl. Opt. 40, 4396–4403 (2001). [CrossRef]
  3. V. Nagali, S. I. Chou, D. S. Baer, R. K. Hanson, J. Segall, “Tunable diode-laser absorption measurements of methane at elevated temperatures,” Appl. Opt. 35, 4026–4032 (1996). [CrossRef] [PubMed]
  4. M. E. Webber, D. S. Baer, R. K. Hanson, “Ammonia monitoring near 1.5 µm with diode laser absorption sensors,” Appl. Opt. 40, 2031–2042 (2001). [CrossRef]
  5. L. S. Rothman, C. P. Rinsland, A. Goldman, S. T. Massie, D. P. Edwards, J.-M. Flaud, A. Perrin, C. Camy-Peyret, V. Dana, J.-Y. Mandin, J. Schroeder, A. McCann, R. R. Gamache, R. B. Wattson, K. Yoshino, K. V. Chance, K. W. Jucks, L. R. Brown, V. Nemtchinov, P. Varanasi, “The HITRAN molecular spectroscopic database and HAWKS (HITRAN atmospheric workstation): 1996 edition,” J. Quant. Spectrosc. Radiat. Transfer 60, 665–710 (1998). [CrossRef]
  6. L. Lundsberg-Nielsen, F. Hegelund, F. M. Nicolaisen, “Analysis of the high-resolution spectrum of ammonia (14NH3) in the near-infrared region, 6400–6900 cm-1,” J. Mol. Spectrosc. 162, 230–245 (1993). [CrossRef]
  7. L. Lundsberg-Nielsen, “Molecular overtone spectroscopy on ammonia,” Ph.D. dissertation (Department of Chemistry, University of Copenhagen, Danish Institute of Fundamental Metrology, Copenhagen, Denmark, 1995).
  8. R. M. Mihalcea, M. E. Webber, D. S. Baer, R. K. Hanson, G. S. Feller, W. B. Chapman, “Diode-laser absorption measurements CO2, H2O, N2O, and NH3 near 2.0 µm,” Appl. Phys. B 67, 283–288 (1998). [CrossRef]
  9. L. R. Brown, J. S. Margolis, “Empirical line parameters of NH3 from 4791 to 5294 cm-1,” J. Quant. Spectrosc. Radiat. Transfer 56(2), 283–294 (1996). [CrossRef]
  10. S. Sarangi, “Analysis of the ν3 + ν4 band of ammonia,” J. Quant. Spectrosc. Radiat. Transfer 18, 257–288 (1977). [CrossRef]
  11. S. Sarangi, “Analysis of line intensities in the two-micron band of ammonia,” J. Quant. Spectrosc. Radiat. Transfer 18, 289–293 (1977). [CrossRef]
  12. M. E. Webber, S. Kim, S. T. Sanders, D. S. Baer, R. K. Hanson, Y. Ikeda, “In situ combustion measurements of CO2 near 2.0 µm by use of a distributed feedback diode-laser sensor,” Appl. Opt. 40, 821–828 (2001). [CrossRef]
  13. L. Sandström, S. Bäckström, H. Ahlberg, S. Höjer, A. G. Larson, “Gas monitoring using semiconductor lasers operating in the 2 µm wavelength region,” Infrared Phys. Technol. 39, 69–75 (1998). [CrossRef]
  14. J. H. Seinfeld, S. N. Pandis, Atmospheric Chemistry and Physics: From Air Pollution to Climate Change (Wiley, New York, 1998).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited