Articles | Volume 15, issue 9
https://doi.org/10.5194/amt-15-2703-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-2703-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Air pollution monitoring: development of ammonia (NH3) dynamic reference gas mixtures at nanomoles per mole levels to improve the lack of traceability of measurements
Tatiana Macé
CORRESPONDING AUTHOR
Department of Gas Metrology, Laboratoire National de Métrologie et d'Essais – LNE, Paris CEDEX 15 75724, France
Maitane Iturrate-Garcia
Department of Chemical and Biological Metrology, Federal Institute of Metrology (METAS), Bern-Wabern 3003, Switzerland
Céline Pascale
Department of Chemical and Biological Metrology, Federal Institute of Metrology (METAS), Bern-Wabern 3003, Switzerland
Bernhard Niederhauser
Department of Chemical and Biological Metrology, Federal Institute of Metrology (METAS), Bern-Wabern 3003, Switzerland
Sophie Vaslin-Reimann
Department of Gas Metrology, Laboratoire National de Métrologie et d'Essais – LNE, Paris CEDEX 15 75724, France
Christophe Sutour
Department of Gas Metrology, Laboratoire National de Métrologie et d'Essais – LNE, Paris CEDEX 15 75724, France
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Short summary
LNE developed, with the company 2M PROCESS, a gas reference generator to dynamically generate NH3 reference gas mixtures in the air at very low fractions between 1 and 400 nmol/mol. The procedure defined by LNE for calibrating NH3 analyzers used for monitoring air quality guarantees relative expanded uncertainties lower than 2 % for this measurement range. The results of a comparison organized between METAS and LNE allowed the validation of LNE's reference generator and calibration procedure.
LNE developed, with the company 2M PROCESS, a gas reference generator to dynamically generate...