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Integrated cavity output spectroscopy measurements of NO levels in breath with a pulsed room-temperature QCL

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Abstract

A cavity-enhanced spectrometer is developed for detection of exhaled nitric oxide in human breath. A thermoelectrically cooled, pulsed, quantum cascade laser, coupled to a high-finesse cavity, is used for trace-gas measurements. The trace-gas analyzer operates at 5.2 microns and utilizes integrated cavity output spectroscopy. Effective optical path lengths of 1.5 km are achieved in a 50-cm-length cell with a sample volume of 60 mL. The instrument is also capable of simultaneously measuringCO2 concentration in exhaled breath. Measurements were performed on human breath samples as well as simulated breath samples. Here we report a detection limit of ≤ 1 ppbv in 4 s for NO in human breath samples.

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References

  1. D.M. Sonnenfroh, W.T. Rawlins, M.G. Allen, C. Gmachl, F. Capasso, A.L. Hutchinson, D.L. Sivco, J.N. Baillargeon, A.Y. Cho, Appl. Opt. 40, 812 (2001)

    Google Scholar 

  2. A.A. Kosterev, F.K. Tittel, C. Gmachl, F. Capasso, D.L. Sivco, J.N. Baillargeon, A.L. Hutchinson, A.Y. Cho, Appl. Opt. 40, 5522 (2001)

    Google Scholar 

  3. Y.A. Bakhirkin, A.A. Kosterev, C. Roller, R.F. Curl, F.K. Tittel, Appl. Opt. 43, 2257 (2004)

    Article  PubMed  Google Scholar 

  4. D.H. Yates, Immunol. Cell Biol. 79, 178 (2001)

    Article  PubMed  Google Scholar 

  5. L. Preto, Alergol. Immunol. Clin. 17, 72 (2002)

    Google Scholar 

  6. C. Roller, K. Namjou, J.D. Jeffers, M. Camp, A. Mock, P.J. McCann, J. Grego, Appl. Opt. 41, 6018 (2002)

    PubMed  Google Scholar 

  7. D.D. Nelson, J.H. Shorter, J.B. McManus, M.S. Zahniser, Appl. Phys. B 75, 343 (2002)

    Article  Google Scholar 

  8. A.A. Kosterov, F.K. Tittel, IEEE J. Quantum Electron. 38, 582 (2002)

    Article  Google Scholar 

  9. A. O’Keefe, D.A.G. Deacon, Rev. Sci. Instrum. 59, 2544 (1988)

    Article  Google Scholar 

  10. J.J. Scherer, D. Voelkel, D.J. Rakestraw, Appl. Phys. B 64, 699 (1997)

    Article  Google Scholar 

  11. R.D. van Zee, J.T. Hodges, J.P. Looney, Appl. Opt. 38, 3951 (1999)

    Google Scholar 

  12. J.B. Paul, J.J. Scherer, A. O’Keefe, L. Lapson, J.G. Anderson, C. Gmachl, F. Capasso, A.Y. Cho, SPIE 4577, 1 (2001)

    Article  Google Scholar 

  13. A. O’Keefe, Chem. Phys. Lett. 293, 331 (1998)

    Article  Google Scholar 

  14. K. Alving, E. Weitzberg, J.M. Lundberg, Eur. Respir. J. 6, 1368 (1993)

    PubMed  Google Scholar 

  15. S.A. Kharitonov, D. Yates, R.A. Robbins, R. Logan-Sinclair, E.A. Shinebourne, P.J. Barnes, Lancet 343, 133 (1994)

    Article  PubMed  Google Scholar 

  16. M.G. Persson, O. Zetterstrom, V. Agrenius, E. Ihre, L.E. Gustafsson, Lancet 343, 146 (1994)

    Article  PubMed  Google Scholar 

  17. A. Massaro, C.H. Fanta, J.S. Stamler, D. Kieta, J.M. Drazen, Am. J. Respir. Crit. Care Med. 152, 800 (1995)

    PubMed  Google Scholar 

  18. A.F. Massaro, S. Mehta, C.M. Lilly, L. Kobzik, J.J. Reilly, J.M. Drazen, Am. J. Respir. Crit. Care Med. 152, 1510 (1996)

    Google Scholar 

  19. American Thoracic Society and the European Respiratory Society, Am. J. Respir. Crit. Care Med. 171, 912 (2005)

    Google Scholar 

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Correspondence to M. L. Silva.

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Silva, M.L., Sonnenfroh, D.M., Rosen, D.I. et al. Integrated cavity output spectroscopy measurements of NO levels in breath with a pulsed room-temperature QCL. Appl. Phys. B 81, 705–710 (2005). https://doi.org/10.1007/s00340-005-1922-2

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  • DOI: https://doi.org/10.1007/s00340-005-1922-2

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