Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research
International audience [1] Thirteen laboratories from the USA and Europe participated in an intercomparison study of Mg/Ca and Sr/Ca measurements in foraminifera. The study included five planktonic species from surface sediments from different geographical regions and water depths. Each of the labor...
Published in: | Geochemistry, Geophysics, Geosystems |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2004
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Subjects: | |
Online Access: | https://hal.science/hal-01463331 https://hal.science/hal-01463331/document https://hal.science/hal-01463331/file/2003GC000650.pdf https://doi.org/10.1029/2003GC000650 |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
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English |
topic |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
spellingShingle |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] Rosenthal, Y Perron-Cashman, S Lear, Ch Bard, E. Barker, S Billups, K Bryan, M Delaney, Ml Demenocal, Pb Dwyer, Gs Elderfield, H German, Cr Greaves, M Lea, Dw Marchitto, Tm Pak, Dk Paradis, Gl Russell, Ad Schneider, Rr Scheiderich, K Stott, L Tachikawa, K Tappa, E Thunell, R Wara, M Weldeab, S Wilson, Pa Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
topic_facet |
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] |
description |
International audience [1] Thirteen laboratories from the USA and Europe participated in an intercomparison study of Mg/Ca and Sr/Ca measurements in foraminifera. The study included five planktonic species from surface sediments from different geographical regions and water depths. Each of the laboratories followed their own cleaning and analytical procedures and had no specific information about the samples. Analysis of solutions of known Mg/Ca and Sr/Ca ratios showed that the intralaboratory instrumental precision is better than 0.5% for both Mg/Ca and Sr/Ca measurements, regardless whether ICP-OES or ICP-MS is used. The interlaboratory precision on the analysis of standard solutions was about 1.5% and 0.9% for Mg/Ca and Sr/Ca measurements, respectively. These are equivalent to Mg/Ca-based temperature repeatability and reproducibility on the analysis of solutions of +/- 0.2 degreesC and +/- 0.5 degreesC, respectively. The analysis of foraminifera suggests an interlaboratory variance of about +/-8% (%RSD) for Mg/Ca measurements, which translates to reproducibility of about +/- 2 - 3 degreesC. The relatively large range in the reproducibility of foraminiferal analysis is primarily due to relatively poor intralaboratory repeatability (about +/- 1 - 2 degreesC) and a bias (about 1 degreesC) due to the application of different cleaning methods by different laboratories. Improving the consistency of cleaning methods among laboratories will, therefore, likely lead to better reproducibility. Even more importantly, the results of this study highlight the need for standards calibration among laboratories as a first step toward improving interlaboratory compatibility. |
author2 |
Rutgers, The State University of New Jersey New Brunswick (RU) Rutgers University System (Rutgers) IMCS Rutgers University System (Rutgers)-Rutgers University System (Rutgers) School of Earth and Ocean Sciences Cardiff Cardiff University Collège de France - Chaire Evolution du climat et de l'océan Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Earth Sciences Cambridge, UK University of Cambridge UK (CAM) |
format |
Article in Journal/Newspaper |
author |
Rosenthal, Y Perron-Cashman, S Lear, Ch Bard, E. Barker, S Billups, K Bryan, M Delaney, Ml Demenocal, Pb Dwyer, Gs Elderfield, H German, Cr Greaves, M Lea, Dw Marchitto, Tm Pak, Dk Paradis, Gl Russell, Ad Schneider, Rr Scheiderich, K Stott, L Tachikawa, K Tappa, E Thunell, R Wara, M Weldeab, S Wilson, Pa |
author_facet |
Rosenthal, Y Perron-Cashman, S Lear, Ch Bard, E. Barker, S Billups, K Bryan, M Delaney, Ml Demenocal, Pb Dwyer, Gs Elderfield, H German, Cr Greaves, M Lea, Dw Marchitto, Tm Pak, Dk Paradis, Gl Russell, Ad Schneider, Rr Scheiderich, K Stott, L Tachikawa, K Tappa, E Thunell, R Wara, M Weldeab, S Wilson, Pa |
author_sort |
Rosenthal, Y |
title |
Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
title_short |
Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
title_full |
Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
title_fullStr |
Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
title_full_unstemmed |
Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research |
title_sort |
interlaboratory comparison study of mg/ca and sr/ca measurements in planktonic foraminifera for paleoceanographic research |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-01463331 https://hal.science/hal-01463331/document https://hal.science/hal-01463331/file/2003GC000650.pdf https://doi.org/10.1029/2003GC000650 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-01463331 Geochemistry, Geophysics, Geosystems, 2004, 5, pp.n/a - n/a. ⟨10.1029/2003GC000650⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GC000650 hal-01463331 https://hal.science/hal-01463331 https://hal.science/hal-01463331/document https://hal.science/hal-01463331/file/2003GC000650.pdf doi:10.1029/2003GC000650 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2003GC000650 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
5 |
container_issue |
4 |
container_start_page |
n/a |
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1766170304136085504 |
spelling |
ftunivnantes:oai:HAL:hal-01463331v1 2023-05-15T18:01:00+02:00 Interlaboratory comparison study of Mg/Ca and Sr/Ca measurements in planktonic foraminifera for paleoceanographic research Rosenthal, Y Perron-Cashman, S Lear, Ch Bard, E. Barker, S Billups, K Bryan, M Delaney, Ml Demenocal, Pb Dwyer, Gs Elderfield, H German, Cr Greaves, M Lea, Dw Marchitto, Tm Pak, Dk Paradis, Gl Russell, Ad Schneider, Rr Scheiderich, K Stott, L Tachikawa, K Tappa, E Thunell, R Wara, M Weldeab, S Wilson, Pa Rutgers, The State University of New Jersey New Brunswick (RU) Rutgers University System (Rutgers) IMCS Rutgers University System (Rutgers)-Rutgers University System (Rutgers) School of Earth and Ocean Sciences Cardiff Cardiff University Collège de France - Chaire Evolution du climat et de l'océan Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Department of Earth Sciences Cambridge, UK University of Cambridge UK (CAM) 2004-04 https://hal.science/hal-01463331 https://hal.science/hal-01463331/document https://hal.science/hal-01463331/file/2003GC000650.pdf https://doi.org/10.1029/2003GC000650 en eng HAL CCSD AGU and the Geochemical Society info:eu-repo/semantics/altIdentifier/doi/10.1029/2003GC000650 hal-01463331 https://hal.science/hal-01463331 https://hal.science/hal-01463331/document https://hal.science/hal-01463331/file/2003GC000650.pdf doi:10.1029/2003GC000650 info:eu-repo/semantics/OpenAccess ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-01463331 Geochemistry, Geophysics, Geosystems, 2004, 5, pp.n/a - n/a. ⟨10.1029/2003GC000650⟩ [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2004 ftunivnantes https://doi.org/10.1029/2003GC000650 2023-01-25T00:22:36Z International audience [1] Thirteen laboratories from the USA and Europe participated in an intercomparison study of Mg/Ca and Sr/Ca measurements in foraminifera. The study included five planktonic species from surface sediments from different geographical regions and water depths. Each of the laboratories followed their own cleaning and analytical procedures and had no specific information about the samples. Analysis of solutions of known Mg/Ca and Sr/Ca ratios showed that the intralaboratory instrumental precision is better than 0.5% for both Mg/Ca and Sr/Ca measurements, regardless whether ICP-OES or ICP-MS is used. The interlaboratory precision on the analysis of standard solutions was about 1.5% and 0.9% for Mg/Ca and Sr/Ca measurements, respectively. These are equivalent to Mg/Ca-based temperature repeatability and reproducibility on the analysis of solutions of +/- 0.2 degreesC and +/- 0.5 degreesC, respectively. The analysis of foraminifera suggests an interlaboratory variance of about +/-8% (%RSD) for Mg/Ca measurements, which translates to reproducibility of about +/- 2 - 3 degreesC. The relatively large range in the reproducibility of foraminiferal analysis is primarily due to relatively poor intralaboratory repeatability (about +/- 1 - 2 degreesC) and a bias (about 1 degreesC) due to the application of different cleaning methods by different laboratories. Improving the consistency of cleaning methods among laboratories will, therefore, likely lead to better reproducibility. Even more importantly, the results of this study highlight the need for standards calibration among laboratories as a first step toward improving interlaboratory compatibility. Article in Journal/Newspaper Planktonic foraminifera Université de Nantes: HAL-UNIV-NANTES Geochemistry, Geophysics, Geosystems 5 4 n/a n/a |