Anion concentrations of the EGRIP ice core

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...

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Main Authors: Hörhold, Maria, Twarloh, Birthe, Behrens, Melanie, Dallmayr, Remi, Erhardt, Tobias, Meyer, Hannah
Format: Dataset
Language:English
Published: PANGAEA
Subjects:
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.966041
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record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.966041 2024-09-15T18:04:23+00:00 Anion concentrations of the EGRIP ice core Hörhold, Maria Twarloh, Birthe Behrens, Melanie Dallmayr, Remi Erhardt, Tobias Meyer, Hannah LATITUDE: 75.630000 * LONGITUDE: -35.980000 text/tab-separated-values, 117722 data points https://doi.pangaea.de/10.1594/PANGAEA.966041 en eng PANGAEA Hörhold, Maria; Twarloh, Birthe; Behrens, Melanie; Dallmayr, Remi; Erhardt, Tobias; Meyer, Hannah: Cation concentrations of the EGRIP ice core [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.966039 https://doi.pangaea.de/10.1594/PANGAEA.966041 CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) Access constraints: unrestricted info:eu-repo/semantics/openAccess anions Bromide cations Chloride East Greenland Ice-core Project EastGRIP EGRIP Fluoride Greenland Ice core ICEDRILL Ice drill Ion chromatography (Thermo Fisher ICS 5000+) Ion concentrations Methane sulfonic acid Nitrate Sample code/label Sulfate dataset ftpangaea 2024-07-24T02:31:35Z 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. Dataset East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-35.980000,-35.980000,75.630000,75.630000)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic anions
Bromide
cations
Chloride
East Greenland Ice-core Project
EastGRIP
EGRIP
Fluoride
Greenland
Ice core
ICEDRILL
Ice drill
Ion chromatography (Thermo Fisher ICS 5000+)
Ion concentrations
Methane sulfonic acid
Nitrate
Sample code/label
Sulfate
spellingShingle anions
Bromide
cations
Chloride
East Greenland Ice-core Project
EastGRIP
EGRIP
Fluoride
Greenland
Ice core
ICEDRILL
Ice drill
Ion chromatography (Thermo Fisher ICS 5000+)
Ion concentrations
Methane sulfonic acid
Nitrate
Sample code/label
Sulfate
Hörhold, Maria
Twarloh, Birthe
Behrens, Melanie
Dallmayr, Remi
Erhardt, Tobias
Meyer, Hannah
Anion concentrations of the EGRIP ice core
topic_facet anions
Bromide
cations
Chloride
East Greenland Ice-core Project
EastGRIP
EGRIP
Fluoride
Greenland
Ice core
ICEDRILL
Ice drill
Ion chromatography (Thermo Fisher ICS 5000+)
Ion concentrations
Methane sulfonic acid
Nitrate
Sample code/label
Sulfate
description 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.
format Dataset
author Hörhold, Maria
Twarloh, Birthe
Behrens, Melanie
Dallmayr, Remi
Erhardt, Tobias
Meyer, Hannah
author_facet Hörhold, Maria
Twarloh, Birthe
Behrens, Melanie
Dallmayr, Remi
Erhardt, Tobias
Meyer, Hannah
author_sort Hörhold, Maria
title Anion concentrations of the EGRIP ice core
title_short Anion concentrations of the EGRIP ice core
title_full Anion concentrations of the EGRIP ice core
title_fullStr Anion concentrations of the EGRIP ice core
title_full_unstemmed Anion concentrations of the EGRIP ice core
title_sort anion concentrations of the egrip ice core
publisher PANGAEA
url https://doi.pangaea.de/10.1594/PANGAEA.966041
op_coverage LATITUDE: 75.630000 * LONGITUDE: -35.980000
long_lat ENVELOPE(-35.980000,-35.980000,75.630000,75.630000)
genre East Greenland
East Greenland Ice-core Project
Greenland
Greenland ice core
Greenland Ice core Project
ice core
genre_facet East Greenland
East Greenland Ice-core Project
Greenland
Greenland ice core
Greenland Ice core Project
ice core
op_relation Hörhold, Maria; Twarloh, Birthe; Behrens, Melanie; Dallmayr, Remi; Erhardt, Tobias; Meyer, Hannah: Cation concentrations of the EGRIP ice core [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.966039
https://doi.pangaea.de/10.1594/PANGAEA.966041
op_rights CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends)
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
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