n-Aldehydes (C6–C10) in snow samples collected at the high alpine research station Jungfraujoch during CLACE 5
Item
Title (Dublin Core)
n-Aldehydes (C6–C10) in snow samples collected at the high alpine research station Jungfraujoch during CLACE 5
Description (Dublin Core)
Samples of freshly fallen snow were collected at the high alpine research station Jungfraujoch, Switzerland, during the Cloud and Aerosol Characterization Experiments (CLACE) 5 in February and March 2006. Sampling was carried out on the Sphinx platform. Headspace-solid-phase-dynamic extraction (HS-SPDE) combined with gas chromatography/mass spectrometry (GC/MS) was used to quantify C<sub>6</sub>–C<sub>10</sub> n-aldehydes in the snow samples. The most abundant n-aldehyde was n-hexanal (median concentration 1.324 μg L<sup>−1</sup>) followed by n-nonanal, n-decanal, n-octanal and n-heptanal (median concentrations 1.239, 0.863, 0.460, and 0.304 μg L<sup>−1</sup>, respectively). A wide range of concentrations was found among individual snow samples, even for samples taken at the same time. Higher median concentrations of all n-aldehydes were observed when air masses reached Jungfraujoch from the north-northwest in comparison to air masses arriving from the southeast-southwest. Results suggest that the n-aldehydes detected most likely are of direct and indirect biogenic origin, and that they entered the snow through the particle phase.
Creator (Dublin Core)
Sieg, K.
Starokozhev, E.
Fries, E.
Sala, S.
Püttmann, W.
Date (Dublin Core)
2018-08-10
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acpd-9-8071-2009
https://acp.copernicus.org/preprints/acp-2009-16/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
