Articles | Volume 15, issue 18
https://doi.org/10.5194/amt-15-5207-2022
https://doi.org/10.5194/amt-15-5207-2022
Research article
 | 
15 Sep 2022
Research article |  | 15 Sep 2022

Thermal–optical analysis of quartz fiber filters loaded with snow samples – determination of iron based on interferences caused by mineral dust

Daniela Kau, Marion Greilinger, Bernadette Kirchsteiger, Aron Göndör, Christopher Herzig, Andreas Limbeck, Elisabeth Eitenberger, and Anne Kasper-Giebl

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This preprint is open for discussion and under review for The Cryosphere (TC).
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Cited articles

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The use of thermal–optical analysis for the determination of elemental carbon (EC) and organic carbon (OC) can be biased by mineral dust (MD). We present a method that utilizes this interference to quantify iron contained in MD in snow samples. Possibilities and limitations of applying this method to particulate matter samples are presented. The influence of light-absorbing iron compounds in MD on the transmittance signal can be used to identify samples experiencing a bias of the OC / EC split.
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