Highly sensitive and selective detection of eight air pollutants with quartz-enhanced photoacoustic sensors

Pietro Patimisco; Arianna Elefante; Raffaele De Palo; Francesco Paciolla; Gabriele Biagi; Robert Weih; Josephine Nauschütz; Johannes Koeth; Angelo Sampaolo; Marilena Giglio; Vincenzo Spagnolo

doi:10.1117/12.2649999

15 March 2023 Highly sensitive and selective detection of eight air pollutants with quartz-enhanced photoacoustic sensors

Pietro Patimisco, Arianna Elefante, Raffaele De Palo, Francesco Paciolla, Gabriele Biagi, Robert Weih, Josephine Nauschütz, Johannes Koeth, Angelo Sampaolo, Marilena Giglio, Vincenzo Spagnolo

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Proceedings Volume 12430, Quantum Sensing and Nano Electronics and Photonics XIX; 124300Q (2023) https://doi.org/10.1117/12.2649999
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We report on the development of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) technology to detect 8 different air pollutants, namely CH₄, NO₂, CO₂, N₂O, CO, NO, SO₂and NH₃, with the same acoustic detection module and interchangeable laser sources, to prove the modularity of the technique as well as the adaptability to different lasers. For each gas species, the fine structure of the infrared absorption bands has been simulated by using HITRAN database. Each gas species was detected with an ultimate detection limit well below their typical natural abundance in air even with signal integration time as low as 0.1 s.

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Pietro Patimisco, Arianna Elefante, Raffaele De Palo, Francesco Paciolla, Gabriele Biagi, Robert Weih, Josephine Nauschütz, Johannes Koeth, Angelo Sampaolo, Marilena Giglio, and Vincenzo Spagnolo "Highly sensitive and selective detection of eight air pollutants with quartz-enhanced photoacoustic sensors", Proc. SPIE 12430, Quantum Sensing and Nano Electronics and Photonics XIX, 124300Q (15 March 2023); https://doi.org/10.1117/12.2649999

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