Articles | Volume 14, issue 4
https://doi.org/10.5194/amt-14-2799-2021
https://doi.org/10.5194/amt-14-2799-2021
Research article
 | 
12 Apr 2021
Research article |  | 12 Apr 2021

Elemental analysis of oxygenated organic coating on black carbon particles using a soot-particle aerosol mass spectrometer

Mutian Ma, Laura-Hélèna Rivellini, YuXi Cui, Megan D. Willis, Rio Wilkie, Jonathan P. D. Abbatt, Manjula R. Canagaratna, Junfeng Wang, Xinlei Ge, and Alex K. Y. Lee

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Latest update: 12 Apr 2024
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Short summary
Chemical characterization of organic coatings is important to advance our understanding of the physio-chemical properties and atmospheric processing of black carbon (BC) particles. This work develops two approaches to improve the elemental analysis of oxygenated organic coatings using a soot-particle aerosol mass spectrometer. Analyzing ambient data with the new approaches indicated that secondary organics that coated on BC were likely less oxygenated compared to those externally mixed with BC.