Articles | Volume 15, issue 2
Atmos. Meas. Tech., 15, 561–572, 2022
https://doi.org/10.5194/amt-15-561-2022
Atmos. Meas. Tech., 15, 561–572, 2022
https://doi.org/10.5194/amt-15-561-2022
Research article
01 Feb 2022
Research article | 01 Feb 2022

Comparing black-carbon- and aerosol-absorption-measuring instruments – a new system using lab-generated soot coated with controlled amounts of secondary organic matter

Daniel M. Kalbermatter et al.

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Latest update: 01 Feb 2023
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Short summary
Soot particles with varying amounts of secondary organic matter coating were generated and used to compare a series of aerosol-absorption-measuring instruments: filter-based and photoacoustic instruments as well as photo-thermal interferometers. Significant deviations in the response of the instruments were observed depending on the amount of secondary organic coating. The system can be used for the inter-comparison and characterisation of instruments.