Articles | Volume 15, issue 3
Atmos. Meas. Tech., 15, 627–637, 2022
https://doi.org/10.5194/amt-15-627-2022
Atmos. Meas. Tech., 15, 627–637, 2022
https://doi.org/10.5194/amt-15-627-2022
Research article
08 Feb 2022
Research article | 08 Feb 2022

A source for the continuous generation of pure and quantifiable HONO mixtures

Guillermo Villena and Jörg Kleffmann

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Short summary
A continuous source for the generation of pure HONO mixtures was developed and characterized, which is based on the Henry's law solubility of HONO in acidic aqueous solutions. The source shows a fast time response and an excellent long-term stability and can be easily adjusted to HONO mixing ratios in the range 0.05–500 ppb. A general equation based on Henry's law is developed, whereby the HONO concentration of the source can be absolutely calculated with an accuracy of better than 10 %.