An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations
International audience Measurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations are easily compromised by contamination, particularly where limited sample is available. Improved techniques are essential if Antarctic ice cores are to be analysed with sufficient spatial resolution...
Published in: | Analytica Chimica Acta |
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Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2009
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-00420615 https://doi.org/10.1016/j.aca.2008.11.067 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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English |
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Ice cores Antarctica Mass spectrometry Lead isotopes Barium Indium [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Ice cores Antarctica Mass spectrometry Lead isotopes Barium Indium [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology J. Burn, Laurie J.R. Rosman, Kevin Candelone, Jean-Pierre Vallelonga, Paul R. Burton, Graeme M. Smith, Andrew Morgan, Vin I. Barbante, Carlo Hong, Sungmin F. Boutron, Claude An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
topic_facet |
Ice cores Antarctica Mass spectrometry Lead isotopes Barium Indium [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Measurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations are easily compromised by contamination, particularly where limited sample is available. Improved techniques are essential if Antarctic ice cores are to be analysed with sufficient spatial resolution to reveal seasonal variations due to climate. This was achieved here by using stainless steel chisels and saws and strict protocols in an ultra-clean cold room to decontaminate and section ice cores. Artificial ice cores, prepared from high purity water were used to develop and refine the procedures and quantify blanks. Ba and In, two other important elements present at pg g−1 and fg g−1 concentrations in Polar ice,were also measured. The final blank amounted to 0.2±0.2 pg of Pb with 206Pb/207Pb and 208Pb/207Pb ratios of 1.16±0.12 and 2.35±0.16, respectively, 1.5±0.4 pg of Ba and 0.6±2.0 fg of In, most of which probably originates fromabrasion of the steel saws by the ice. The procedure was demonstrated on a Holocene Antarctic ice core section and was shown to contribute blanks of only ∼5%, ∼14% and ∼0.8% to monthly resolved samples with respective Pb, Ba and In concentrations of 0.12 pg g−1, 0.3 pg g−1 and 2.3 fg g−1. Uncertainties in the Pb isotopic ratio measurements were degraded by only ∼0.2%. |
author2 |
Department of Imaging and Applied Physics Curtin University Perth Planning and Transport Research Centre (PATREC)-Planning and Transport Research Centre (PATREC) Environmental Sciences Department University of Ca’ Foscari Venice, Italy Australian Nuclear Science and Technology Organisation (ANSTO) Australian Nuclear Science and Technology Organisation Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Korea Polar Research Institute (KOPRI) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Australian Research Council grant DP0345625 and Antarctic Science Advisory Council grant #2786. |
format |
Article in Journal/Newspaper |
author |
J. Burn, Laurie J.R. Rosman, Kevin Candelone, Jean-Pierre Vallelonga, Paul R. Burton, Graeme M. Smith, Andrew Morgan, Vin I. Barbante, Carlo Hong, Sungmin F. Boutron, Claude |
author_facet |
J. Burn, Laurie J.R. Rosman, Kevin Candelone, Jean-Pierre Vallelonga, Paul R. Burton, Graeme M. Smith, Andrew Morgan, Vin I. Barbante, Carlo Hong, Sungmin F. Boutron, Claude |
author_sort |
J. Burn, Laurie |
title |
An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
title_short |
An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
title_full |
An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
title_fullStr |
An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
title_full_unstemmed |
An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations |
title_sort |
ultra-clean technique for accurately analysing pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 pb concentrations |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00420615 https://doi.org/10.1016/j.aca.2008.11.067 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica ice core |
op_source |
ISSN: 0003-2670 Analytica Chimica Acta https://hal-insu.archives-ouvertes.fr/insu-00420615 Analytica Chimica Acta, Elsevier Masson, 2009, 634 (2), pp.228-236. ⟨10.1016/j.aca.2008.11.067⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2008.11.067 insu-00420615 https://hal-insu.archives-ouvertes.fr/insu-00420615 doi:10.1016/j.aca.2008.11.067 |
op_doi |
https://doi.org/10.1016/j.aca.2008.11.067 |
container_title |
Analytica Chimica Acta |
container_volume |
634 |
container_issue |
2 |
container_start_page |
228 |
op_container_end_page |
236 |
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1766257602120908800 |
spelling |
ftccsdartic:oai:HAL:insu-00420615v1 2023-05-15T13:52:51+02:00 An ultra-clean technique for accurately analysing Pb isotopes and heavy metals at high spatial resolution in ice cores with sub-pg g−1 Pb concentrations J. Burn, Laurie J.R. Rosman, Kevin Candelone, Jean-Pierre Vallelonga, Paul R. Burton, Graeme M. Smith, Andrew Morgan, Vin I. Barbante, Carlo Hong, Sungmin F. Boutron, Claude Department of Imaging and Applied Physics Curtin University Perth Planning and Transport Research Centre (PATREC)-Planning and Transport Research Centre (PATREC) Environmental Sciences Department University of Ca’ Foscari Venice, Italy Australian Nuclear Science and Technology Organisation (ANSTO) Australian Nuclear Science and Technology Organisation Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC) Korea Polar Research Institute (KOPRI) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Australian Research Council grant DP0345625 and Antarctic Science Advisory Council grant #2786. 2009-02-23 https://hal-insu.archives-ouvertes.fr/insu-00420615 https://doi.org/10.1016/j.aca.2008.11.067 en eng HAL CCSD Elsevier Masson info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aca.2008.11.067 insu-00420615 https://hal-insu.archives-ouvertes.fr/insu-00420615 doi:10.1016/j.aca.2008.11.067 ISSN: 0003-2670 Analytica Chimica Acta https://hal-insu.archives-ouvertes.fr/insu-00420615 Analytica Chimica Acta, Elsevier Masson, 2009, 634 (2), pp.228-236. ⟨10.1016/j.aca.2008.11.067⟩ Ice cores Antarctica Mass spectrometry Lead isotopes Barium Indium [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2009 ftccsdartic https://doi.org/10.1016/j.aca.2008.11.067 2021-10-24T19:33:41Z International audience Measurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations are easily compromised by contamination, particularly where limited sample is available. Improved techniques are essential if Antarctic ice cores are to be analysed with sufficient spatial resolution to reveal seasonal variations due to climate. This was achieved here by using stainless steel chisels and saws and strict protocols in an ultra-clean cold room to decontaminate and section ice cores. Artificial ice cores, prepared from high purity water were used to develop and refine the procedures and quantify blanks. Ba and In, two other important elements present at pg g−1 and fg g−1 concentrations in Polar ice,were also measured. The final blank amounted to 0.2±0.2 pg of Pb with 206Pb/207Pb and 208Pb/207Pb ratios of 1.16±0.12 and 2.35±0.16, respectively, 1.5±0.4 pg of Ba and 0.6±2.0 fg of In, most of which probably originates fromabrasion of the steel saws by the ice. The procedure was demonstrated on a Holocene Antarctic ice core section and was shown to contribute blanks of only ∼5%, ∼14% and ∼0.8% to monthly resolved samples with respective Pb, Ba and In concentrations of 0.12 pg g−1, 0.3 pg g−1 and 2.3 fg g−1. Uncertainties in the Pb isotopic ratio measurements were degraded by only ∼0.2%. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Analytica Chimica Acta 634 2 228 236 |