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Quantum Cascade Laser-Based Sensor Platform for Ammonia Detection in Exhaled Human Breath

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Abstract

An ammonia sensor for clinical breath analysis based on a CW mid-infrared quantum cascade laser and quartz-enhanced photoacoustic spectroscopy with a detection sensitivity of 20 ppbv (1σ) with a 0.3 s time resolution is reported.

© 2008 Optical Society of America

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