Articles | Volume 14, issue 10
Atmos. Meas. Tech., 14, 6357–6378, 2021
https://doi.org/10.5194/amt-14-6357-2021
Atmos. Meas. Tech., 14, 6357–6378, 2021
https://doi.org/10.5194/amt-14-6357-2021

Research article 01 Oct 2021

Research article | 01 Oct 2021

Assessment of online water-soluble brown carbon measuring systems for aircraft sampling

Linghan Zeng et al.

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Short summary
Three online systems for measuring water-soluble brown carbon are compared. A mist chamber and two different particle-into-liquid samplers were deployed on separate research aircraft targeting wildfires and followed a similar detection method using a long-path liquid waveguide with a spectrometer to measure the light absorption from 300 to 700 nm. Detection limits, signal hysteresis and other sampling issues are compared, and further improvements of these liquid-based systems are provided.