Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999
In order to get information about the pore-water characteristics from the dry samples, the water-soluble elements in the sediments were determined by shaking the samples with a proportionate amount of ultrapure water for a defined period of time. To obtain the water extracts, approximately 1 g of th...
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ftdatacite:10.1594/pangaea.881502 2023-05-15T15:12:10+02:00 Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 Schirrmeister, Lutz Siegert, Christine 2017 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.881502 https://doi.pangaea.de/10.1594/PANGAEA.881502 en eng PANGAEA - Data Publisher for Earth & Environmental Science Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Sample code/label Height above sea level Sediment type pH Conductivity, electrolytic Calcium Potassium Magnesium Sodium Chloride Nitrate Sulfate Bicarbonate ion Multiple investigations RU-Land_1999_Lyakhovsky AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn dataset Dataset 2017 ftdatacite https://doi.org/10.1594/pangaea.881502 2021-11-05T12:55:41Z In order to get information about the pore-water characteristics from the dry samples, the water-soluble elements in the sediments were determined by shaking the samples with a proportionate amount of ultrapure water for a defined period of time. To obtain the water extracts, approximately 1 g of the freeze-dried sample was shaken for approximately 90 minutes in 50 ml centrifuge tubes with ultrapure water at a soil:water ratio of 1:25 using an overhead shaker (Gerhardt Laboshake). Then the suspension was centrifuged (Heraeus Multifuge 3s) at 4000 rpm for 15 minutes. The decanted extraction was filtered through a 0.45 µm cellulose acetate filter. We measured total dissolved elemental concentrations of Al, Ba, Ca, Fe, K, Mg, Mn, Na, P, Si, and Sr and anion concentrations of F-, Cl-, SO42-, Br-, NO3-, PO43-, and HCO3-.The element concentrations were analyzed using inductively coupled plasma-optical emission spectrometry (ICP-OES, Perkin-Elmer Optima 8300DV), while the anion content was determined by ion chromatography (IC, Thermo ICS2100). Hydrogen carbonate concentrations were measured by potentiometric pH-value titration with 0.01 M HCl using an automatic titrator (Metrohm 794 Basic Titrino). In order to estimate the procedural error, extractions were carried out in duplicate for every 5th to 10th sample and 2-3 blank solutions of ultrapure water were treated in the same manner as the extractions and measured for concentrations. Water EC and pH values were measured using a WTW MultiLab 540 multi-parameter device equipped with a TetraCon 325 cell referenced to 25 °C and a pH Sentix 81 electrode. Dataset Arctic permafrost DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Sample code/label Height above sea level Sediment type pH Conductivity, electrolytic Calcium Potassium Magnesium Sodium Chloride Nitrate Sulfate Bicarbonate ion Multiple investigations RU-Land_1999_Lyakhovsky AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
spellingShingle |
Sample code/label Height above sea level Sediment type pH Conductivity, electrolytic Calcium Potassium Magnesium Sodium Chloride Nitrate Sulfate Bicarbonate ion Multiple investigations RU-Land_1999_Lyakhovsky AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn Schirrmeister, Lutz Siegert, Christine Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
topic_facet |
Sample code/label Height above sea level Sediment type pH Conductivity, electrolytic Calcium Potassium Magnesium Sodium Chloride Nitrate Sulfate Bicarbonate ion Multiple investigations RU-Land_1999_Lyakhovsky AWI Arctic Land Expedition Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
description |
In order to get information about the pore-water characteristics from the dry samples, the water-soluble elements in the sediments were determined by shaking the samples with a proportionate amount of ultrapure water for a defined period of time. To obtain the water extracts, approximately 1 g of the freeze-dried sample was shaken for approximately 90 minutes in 50 ml centrifuge tubes with ultrapure water at a soil:water ratio of 1:25 using an overhead shaker (Gerhardt Laboshake). Then the suspension was centrifuged (Heraeus Multifuge 3s) at 4000 rpm for 15 minutes. The decanted extraction was filtered through a 0.45 µm cellulose acetate filter. We measured total dissolved elemental concentrations of Al, Ba, Ca, Fe, K, Mg, Mn, Na, P, Si, and Sr and anion concentrations of F-, Cl-, SO42-, Br-, NO3-, PO43-, and HCO3-.The element concentrations were analyzed using inductively coupled plasma-optical emission spectrometry (ICP-OES, Perkin-Elmer Optima 8300DV), while the anion content was determined by ion chromatography (IC, Thermo ICS2100). Hydrogen carbonate concentrations were measured by potentiometric pH-value titration with 0.01 M HCl using an automatic titrator (Metrohm 794 Basic Titrino). In order to estimate the procedural error, extractions were carried out in duplicate for every 5th to 10th sample and 2-3 blank solutions of ultrapure water were treated in the same manner as the extractions and measured for concentrations. Water EC and pH values were measured using a WTW MultiLab 540 multi-parameter device equipped with a TetraCon 325 cell referenced to 25 °C and a pH Sentix 81 electrode. |
format |
Dataset |
author |
Schirrmeister, Lutz Siegert, Christine |
author_facet |
Schirrmeister, Lutz Siegert, Christine |
author_sort |
Schirrmeister, Lutz |
title |
Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
title_short |
Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
title_full |
Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
title_fullStr |
Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
title_full_unstemmed |
Pore-water analyses of permafrost deposits from Lya_1999_R17 , Bol'shoy Lyakhovsky Island in 1999 |
title_sort |
pore-water analyses of permafrost deposits from lya_1999_r17 , bol'shoy lyakhovsky island in 1999 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2017 |
url |
https://dx.doi.org/10.1594/pangaea.881502 https://doi.pangaea.de/10.1594/PANGAEA.881502 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.881502 |
_version_ |
1766342884382998528 |