de.pangaea.dataset966041 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-06-17T13:55:16Z https://doi.pangaea.de/10.1594/PANGAEA.966041 <gco:CharacterString>Anion concentrations of the EGRIP ice core</gco:CharacterString> 2025-03-05T00:03:50 publication https://doi.org/10.1594/PANGAEA.966041 Hörhold, Maria
maria.hoerhold@awi.de
https://orcid.org/0000-0002-9110-0909 information author Twarloh, Birthe
birthe.twarloh@awi.de
author Behrens, Melanie
melanie.behrens@awi.de
https://orcid.org/0000-0001-9275-4333 information author Dallmayr, Remi
remi.dallmayr@awi.de
https://orcid.org/0000-0001-6059-0098 information author Erhardt, Tobias
erhardt@em.uni-frankfurt.de
https://orcid.org/0000-0002-6683-6746 information author Meyer, Hannah
hannah.meyer@kit.edu
author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital During the continuous flow analysis (CFA) campaigns of the EGRIP ice core at the University of Bern, Switzerland in 2018, 2019 and 2020, subsamples for the analysis of ion concentrations were collected in a 2 – 5 cm resolution from the meltwater. The subsamples were collected into pre-cleaned 10 ml vials and were kept frozen during storage and transportation to the Alfred-Wegener-Institut in Bremerhaven, Germany. Prior to the analysis, the vials containing the discrete decontaminated aliquots of the ice core were melted at room temperature. The vials were then placed into an autosampler for the measurements. Simultaneous analysis of anions and cations was performed using a two-channel Dionex ICS 5000+ reagent-free HPIC system (Thermo Fisher). For the anion (cation) determination an AERS 500 2mm suppressor and ADRS 600 2mm suppressor (CERS 500 2mm and CDRS 600 2mm) together with the Dionex IonPac AG18-Fast-4µm guard column and the AS18 fast-4µm column (IonPac CG12A-5µm guard column and the CS12A-5µm column ) and the Dionex IonPac AS18-Fast-4µm analytical column (IonPac CS12A-5µm column) were used. For the anions an isocratic mode was used. For the cations the mode was changed from isocratic to gradient. Also, the eluent concentration was modified in-between measurements in order to improve the quality of the data. The measurements were calibrated with seven internal standards, prepared from available anion and cation standards. Premixed external standards were used for quality control. In this study, the IC provided a quantitative analysis of the concentration of Na+, NH4+, K+, NO3-, , F−, MSA−, C1−, Br−, and SO42− with an accuracy of 10 %. The accuracy for of Ca2+ and Mg2+ measurements is much lower. We recommend not to use these values. The concentrations of bromide and fluoride are close to the detection limit and are suggest to consider with great care. For details on the sampling protocol or potential contamination during the CFA campaign we ask the users to get in touch with the authors. completed Hörhold, Maria
maria.hoerhold@awi.de
https://orcid.org/0000-0002-9110-0909 information principalInvestigator anions cations EGRIP Ice core Ion concentrations theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact EGRIP East Greenland Ice-core Project theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -35.98 -35.98 75.63 75.63 The depth information of samples was not available at the time of submission and will be added in due course. Sample code/label thematicClassification Fluoride physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg Methanesulfonic acid physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg Chloride physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg Bromide physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg Sulfate physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg Nitrate physicalMeasurement Ion chromatography (Thermo Fisher ICS 5000+); ppb µg/kg µg/kg text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.966041?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: EGRIP (EastGRIP) * LATITUDE: 75.630000 * LONGITUDE: -35.980000 * LOCATION: Greenland * METHOD/DEVICE: Ice drill Related to <gco:CharacterString>Cation concentrations of the EGRIP ice core</gco:CharacterString> 2025-01-01 publication https://doi.org/10.1594/PANGAEA.966039 Hörhold, Maria
maria.hoerhold@awi.de
https://orcid.org/0000-0002-9110-0909 information author Twarloh, Birthe
birthe.twarloh@awi.de
author Behrens, Melanie
melanie.behrens@awi.de
https://orcid.org/0000-0001-9275-4333 information author Dallmayr, Remi
remi.dallmayr@awi.de
https://orcid.org/0000-0001-6059-0098 information author Erhardt, Tobias
erhardt@em.uni-frankfurt.de
https://orcid.org/0000-0002-6683-6746 information author Meyer, Hannah
hannah.meyer@kit.edu
author documentDigital