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Interference-free Measurements of Environmental NO2 by Laser Photoacoustic Spectroscopy

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Abstract

A photoacoustic spectroscopy based NO2 sensor was developed for measurement of ambient NO2 with a sensitivity of about 0.4 ppb (SNR=1) in 1 min, which was validated with side- by-side measurements using a referenced NOx analyzer.

© 2018 The Author(s)

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