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Ozone Quantification by Selected Ion Flow Tube Mass Spectrometry: Influence of Humidity and Manufacturing Gas of Ozone Generator

Vitola Pasetto, Leticia and Richard, Romain and Pic, Jean-Stéphane and Manero, Marie-Hélène and Violleau, Frédéric and Simon, Valérie Ozone Quantification by Selected Ion Flow Tube Mass Spectrometry: Influence of Humidity and Manufacturing Gas of Ozone Generator. (2019) Analytical Chemistry, 91 (24). 15518-15524. ISSN 0003-2700

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Official URL: https://doi.org/10.1021/acs.analchem.9b03337

Abstract

The quantification of ozone by SIFT-MS was investigated in conditions suitable with an industrial emission context (high ozone demand, dry air/oxygen as the manufacturing gas of the ozone generator, and high humidity levels beyond saturation at room conditions). Ozone reacts with four negative precursor ions available in the SIFT-MS device (NO2–, O2–, HO–, and O–), each precursor ion having its specific domain of linearity. For a high ozone concentration range, only NO2– and O2– have resulted in a linear behavior (between 1 and 100 ppmv of O3 for NO2–, between 1 and 50 ppmv of O3 for O2–). No water interference was identified during ozone measurements by SIFT-MS using NO2– and O2– precursor ions, even with extreme humidity levels. The presence of nitrogen oxide contaminants (due to the use of dry air as the manufacturing gas of the ozone generator) affected the ozone quantification by SIFT-MS. It is critical for NO2– precursor ions, whose rate constant varied as a function of NO2 concentrations. With O2– precursor ion, ozone was successfully measured in the presence of nitrogen oxides; however, the secondary chemistry must be taken into account.

Item Type:Article
HAL Id:hal-02458601
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Funders:
Agence Nationale de la Recherche - ANR - Technology and Agro Innovation International
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Deposited On:28 Jan 2020 17:34

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