Articles | Volume 18, issue 4
https://doi.org/10.5194/amt-18-971-2025
https://doi.org/10.5194/amt-18-971-2025
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

Cited articles

Akagi, S. K., Yokelson, R. J., Wiedinmyer, C., Alvarado, M. J., Reid, J. S., Karl, T., Crounse, J. D., and Wennberg, P. O.: Emission factors for open and domestic biomass burning for use in atmospheric models, Atmos. Chem. Phys., 11, 4039–4072, https://doi.org/10.5194/acp-11-4039-2011, 2011. 
Barone, G., Smith, D., and Higgins, M.: Characterizing the performance of surface modifications that enhance sensitivity, reliability, reproducibility and accuracy of analytical instruments, SilcoTek [online], https://www.silcotek.com/hubfs/Literature Catalog/White Papers/Inert Sampling/#WP-INERT-001 Characterizing Performance (last access: 20 February 2025), 2011. 
Brasseur, G., Arijs, E., De Rudder, A., Nevejans, D., and Ingels, J.: Acetonitrile in the atmosphere, Geophys. Res. Lett., 10, 725–728, https://doi.org/10.1029/GL010i008p00725, 1983. 
Brewer, P. J., Goody, B. A., Woods, P. T., and Milton, M. J. T.: A dynamic gravimetric standard for trace water, Rev. Sci. Instrum., 82, 105102, https://doi.org/10.1063/1.3642660, 2011. 
Brewer, P. J., Brown, R. J., Mussell Webber, E. B., van Aswegen, S., Ward, M. K., Hill-Pearce, R. E., and Worton, D. R.: Breakthrough in negating the impact of adsorption in gas reference materials, Anal. Chem., 91, 5310–5315, https://doi.org/10.1021/acs.analchem.9b00175, 2019. 
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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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