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High precision 2.0 µm Photoacoustic Spectrometer for Determination of the 13CO2/12CO2 Isotope Ratio

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Abstract

A photoacoustic spectrometer operating near 2.0 µm has been developed for high precision measurements of the 13CO2/12CO2 isotope ratio. The instrument performance and effects of water vapor on the photoacoustic signal are discussed.

© 2017 Optical Society of America

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