Continuous flow analysis of total organic carbon in polar ice cores
Ice cores are a widely used archive to reconstruct past changes of the climate system. This is done by measuring the concentration of substances in the ice and in the air of bubbles enclosed in ice. Some species pertaining to the carbon cycle (e.g., CO2, CH4) are routinely measured. However, informa...
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American Chemical Society
2008
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Online Access: | http://nora.nerc.ac.uk/id/eprint/5861/ https://doi.org/10.1021/es801244e |
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ftnerc:oai:nora.nerc.ac.uk:5861 2023-05-15T14:05:16+02:00 Continuous flow analysis of total organic carbon in polar ice cores Federer, Urs Kaufmann, Patrik R. Hutterli, Manuel A. Schüpbach, Simon Stocker, Thomas F. 2008 http://nora.nerc.ac.uk/id/eprint/5861/ https://doi.org/10.1021/es801244e unknown American Chemical Society Federer, Urs; Kaufmann, Patrik R.; Hutterli, Manuel A.; Schüpbach, Simon; Stocker, Thomas F. 2008 Continuous flow analysis of total organic carbon in polar ice cores. Environmental Science & Technology, 42 (21). 8039-8043. https://doi.org/10.1021/es801244e <https://doi.org/10.1021/es801244e> Glaciology Atmospheric Sciences Chemistry Publication - Article PeerReviewed 2008 ftnerc https://doi.org/10.1021/es801244e 2023-02-04T19:23:50Z Ice cores are a widely used archive to reconstruct past changes of the climate system. This is done by measuring the concentration of substances in the ice and in the air of bubbles enclosed in ice. Some species pertaining to the carbon cycle (e.g., CO2, CH4) are routinely measured. However, information about the organic fraction of the impurities in polar ice is still very limited. Therefore, we developed a new method to determine the content of total organic carbon (TOC) in ice cores using a continuous flow analysis (CFA) system. The method is based on photochemical oxidation of TOC and the electrolytic quantification of theCO2 producedduring oxidation. The TOC instrument features a limit of detection of 2 ppbC and a response time of 60 s at a sample flow rate of 0.7 mL/ min and a linear measurement range of 2-4000 ppbC. First measurements on the ice core from Talos Dome, Antarctica, reveal TOC concentrations varying between 80 and 360 ppbC in the 20 m section presented. Article in Journal/Newspaper Antarc* Antarctica ice core Natural Environment Research Council: NERC Open Research Archive Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Environmental Science & Technology 42 21 8039 8043 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Glaciology Atmospheric Sciences Chemistry |
spellingShingle |
Glaciology Atmospheric Sciences Chemistry Federer, Urs Kaufmann, Patrik R. Hutterli, Manuel A. Schüpbach, Simon Stocker, Thomas F. Continuous flow analysis of total organic carbon in polar ice cores |
topic_facet |
Glaciology Atmospheric Sciences Chemistry |
description |
Ice cores are a widely used archive to reconstruct past changes of the climate system. This is done by measuring the concentration of substances in the ice and in the air of bubbles enclosed in ice. Some species pertaining to the carbon cycle (e.g., CO2, CH4) are routinely measured. However, information about the organic fraction of the impurities in polar ice is still very limited. Therefore, we developed a new method to determine the content of total organic carbon (TOC) in ice cores using a continuous flow analysis (CFA) system. The method is based on photochemical oxidation of TOC and the electrolytic quantification of theCO2 producedduring oxidation. The TOC instrument features a limit of detection of 2 ppbC and a response time of 60 s at a sample flow rate of 0.7 mL/ min and a linear measurement range of 2-4000 ppbC. First measurements on the ice core from Talos Dome, Antarctica, reveal TOC concentrations varying between 80 and 360 ppbC in the 20 m section presented. |
format |
Article in Journal/Newspaper |
author |
Federer, Urs Kaufmann, Patrik R. Hutterli, Manuel A. Schüpbach, Simon Stocker, Thomas F. |
author_facet |
Federer, Urs Kaufmann, Patrik R. Hutterli, Manuel A. Schüpbach, Simon Stocker, Thomas F. |
author_sort |
Federer, Urs |
title |
Continuous flow analysis of total organic carbon in polar ice cores |
title_short |
Continuous flow analysis of total organic carbon in polar ice cores |
title_full |
Continuous flow analysis of total organic carbon in polar ice cores |
title_fullStr |
Continuous flow analysis of total organic carbon in polar ice cores |
title_full_unstemmed |
Continuous flow analysis of total organic carbon in polar ice cores |
title_sort |
continuous flow analysis of total organic carbon in polar ice cores |
publisher |
American Chemical Society |
publishDate |
2008 |
url |
http://nora.nerc.ac.uk/id/eprint/5861/ https://doi.org/10.1021/es801244e |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Talos Dome |
geographic_facet |
Talos Dome |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_relation |
Federer, Urs; Kaufmann, Patrik R.; Hutterli, Manuel A.; Schüpbach, Simon; Stocker, Thomas F. 2008 Continuous flow analysis of total organic carbon in polar ice cores. Environmental Science & Technology, 42 (21). 8039-8043. https://doi.org/10.1021/es801244e <https://doi.org/10.1021/es801244e> |
op_doi |
https://doi.org/10.1021/es801244e |
container_title |
Environmental Science & Technology |
container_volume |
42 |
container_issue |
21 |
container_start_page |
8039 |
op_container_end_page |
8043 |
_version_ |
1766277069698760704 |