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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: IEEE Sens J. 2009 Dec 11;10(1):76–84. doi: 10.1109/JSEN.2009.2035764

Fig. 6.

Fig. 6

Infrared QCL spectrum of 18.1 ppb NO and 4.5% CO2 in exhaled breath (6-L/min exhaled flow). Spectrum was collected at 10 Hz. Markers are data and the solid line is the nonlinear least squares fit to the data. Sample pressure 35 Torr.