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Using a Modulated Quantum Cascade Laser for Photoacoustic Spectra Recording of Exhaled Acetone and Main Breath Components

Jonas Pangerl, Elisabeth Wittmann, Stefan Weigl, Max Müller, Rudolf Bierl, and Frank-Michael Matysik

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Abstract

Photoacoustic spectra of main breath components together with acetone are presented demonstrating spectral linearity towards different concentrations and compositions. The acetone 3σ detection limit at 1209 cm−1 is 0.28 ppbV.

© 2022 The Author(s)

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