Simultaneous measurements of free and combined amino acids on size-segregated aerosol particles in a sea spray aerosol chamber


In a tank experiment under controlled conditions, the so-called sea spray aerosol chamber, the amino acid and sodium concentrations on the size-segregated aerosol particles were investigated in 3 cycles (experimental approaches, named as Cycle C1, C2 and C3 within the data set). The seawater samples are ambient North Sea water samples sampled on three different days sampled in April 2017 in the Wadden Sea region of the south-eastern North Sea. The seawater samples were first desalted and concentrated, and for the aerosol samples, the aqueous extract was also concentrated. The concentrated samples were divided into aliquots for analysis of free amino acids and hydrolyzed amino acids (hydrolysis by HCl, 110 ºC for 20 h with addition of ascorbic acid). The processed samples were filtered, derivatized using the AccQ-Tag™ precolumn derivatization method (Waters, Eschborn, Germany), and measured by ultrahigh performance liquid chromatography with electrospray ionization and Orbitrap mass spectrometry (UHPLC/ESI Orbitrap-MS). Exact details of the method used can be found under Triesch et al., 2021a (doi:10.5194/acp-21-163-2021) and Triesch et al. 2021b (doi:10.1021/acsearthspacechem.1c00080). From these, nascent sea spray aerosol particles were generated in the sea spray aerosol chamber using a plunging jet system. These nascent sea spray aerosol particles were collected in a low pressure impactor (LPI) size resolved and the individual stages are described in the dataset with LPI. The data set reflects the free and combined amino acids and sodium levels on the size-segregated aerosol particles. Using this data set, conclusions were made about a selective transfer of amino acids from the ocean to the atmosphere under controlled conditions on molecular level. This information could be relevant in the future when parameterizing the organic matter content based on organic compounds and compound classes on marine aerosol particles.

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Creator Triesch, Nadja ORCID logo; van Pinxteren, Manuela ORCID logo; Salter, Matthew ORCID logo; Stolle, Christian; Pereira, Ryan ORCID logo; Zieger, Paul ORCID logo; Herrmann, Hartmut ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference European Research Council Crossref Funder ID 336408 Air-sea gas exchange - PArameterization of the Sea-Surface Microlayer Effect (PASSME); Horizon 2020 Crossref Funder ID 690958 MARine atmospheric Science Unravelled: Analytical and mass spectrometric techniques development and application / MARSU; Horizon 2020 Crossref Funder ID 949495 Breathing Oceans: understanding the organic skin that modulates the exchange of greenhouse gases between the atmosphere and the ocean / BOOGIE; Leibniz Association Crossref Funder ID SAW-2016-TROPOS-2 Marine biological production, organic aerosol particles and marine clouds: a Process Chain; Swedish Research Council Crossref Funder ID 2016-05100 ; Swedish Research Council Crossref Funder ID 2018-05045
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 1057 data points
Discipline Earth System Research
Spatial Coverage (8.194 LON, 53.503 LAT); Jade Bay
Temporal Coverage Begin 2017-04-03T00:00:00Z
Temporal Coverage End 2017-04-13T00:00:00Z