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Laser-based hydrogen sulfide detection at atmospheric pressure using wavelength modulation spectroscopy

Dorota Stachowiak, Piotr Jaworski, Gerard Wysocki, and Michał Nikodem

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Abstract

Application of wavelength modulation spectroscopy at 1575 nm to hydrogen sulfide (H2S) detection at atmospheric pressure is discussed. Cross-interference with carbon dioxide transitions is analyzed. Detection limit below 1 ppmv/Hz1/2 is obtained using a setup with a multi-pass cell.

© 2016 Optical Society of America

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