Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 4
Articles | Volume 18, issue 4
https://doi.org/10.5194/amt-18-971-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-971-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 4
Research article
 | 
26 Feb 2025
Research article |  | 26 Feb 2025

Development of accurate and stable primary standard gas mixtures for global atmospheric acetonitrile monitoring: evaluating adsorption loss and long-term stability

Baigali Tsogt, Ji Hwan Kang, Seok-Young Oh, and Sangil Lee

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Short summary
We tested different cylinders and methods to create standard gas mixtures of acetonitrile, a chemical important for understanding air quality and climate change. We found making accurate mixtures at very low levels challenging due to the gas sticking to cylinder walls. However, we successfully created stable mixtures at higher levels. These can be used as reliable standards for global air monitoring. More research is needed to develop methods for making accurate mixtures at lower levels.
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