Articles | Volume 17, issue 6
Atmos. Chem. Phys., 17, 3929–3943, 2017
https://doi.org/10.5194/acp-17-3929-2017
Atmos. Chem. Phys., 17, 3929–3943, 2017
https://doi.org/10.5194/acp-17-3929-2017

Research article 23 Mar 2017

Research article | 23 Mar 2017

A quantification method for heat-decomposable methylglyoxal oligomers and its application on 1,3,5-trimethylbenzene SOA

Maria Rodigast et al.

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Short summary
The study presents, for the first time, a quantification method for methylglyoxal oligomers and highlights their importance for SOA formation. The method was applied to determine the fraction of methylglyoxal oligomers of 1,3,5-trimethylbenzene SOA dependent on relative humidity and seed particle acidity. An oligomer contribution of up to 8 % was calculated varying with experimental conditions and thus further hints for the dependency of the oligomer formation mechanism on conditions were found.
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