Humics—Their History in the Radiocarbon Intercomparison Studies
ABSTRACT Over the past 30 years, the format of the radiocarbon ( 14 C) intercomparison studies has changed, however, the selection of sample types used in these studies has remained constant—namely, natural and routinely dated materials that could subsequently be used as in-house reference materials...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/rdc.2019.11 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000110 |
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crcambridgeupr:10.1017/rdc.2019.11 2024-10-13T14:08:27+00:00 Humics—Their History in the Radiocarbon Intercomparison Studies Naysmith, Philip Scott, E Marian Dunbar, Elaine Cook, Gordon T 2019 http://dx.doi.org/10.1017/rdc.2019.11 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000110 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Radiocarbon volume 61, issue 5, page 1413-1422 ISSN 0033-8222 1945-5755 journal-article 2019 crcambridgeupr https://doi.org/10.1017/rdc.2019.11 2024-09-18T04:04:04Z ABSTRACT Over the past 30 years, the format of the radiocarbon ( 14 C) intercomparison studies has changed, however, the selection of sample types used in these studies has remained constant—namely, natural and routinely dated materials that could subsequently be used as in-house reference materials. One such material is peat which has been used 12 times, starting with the ICS in 1988. Peat from Iceland (TIRI), Ellanmore (TIRI), Letham Moss (ICS, VIRI, and SIRI), and St Bees, UK (FIRI and VIRI) have been used, as well as a near-background peat from Siberia. In the main, these peat samples have been provided as the humic acid fraction, with the main advantage being that the humic acid is extracted in solution and then precipitated (the solution phase providing the homogenisation) which is a key requirement for a reference material. In this paper, we will revisit the peat results and explore their findings. In addition, for the last 8 years, the Letham Moss sample has been used in the SUERC 14 C laboratory as an in-house standard or reference material. This has resulted in several thousand measurements. Such a rich data set is explored to illustrate the benefits arising from the intercomparison program. Article in Journal/Newspaper Iceland Siberia Cambridge University Press Radiocarbon 61 5 1413 1422 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT Over the past 30 years, the format of the radiocarbon ( 14 C) intercomparison studies has changed, however, the selection of sample types used in these studies has remained constant—namely, natural and routinely dated materials that could subsequently be used as in-house reference materials. One such material is peat which has been used 12 times, starting with the ICS in 1988. Peat from Iceland (TIRI), Ellanmore (TIRI), Letham Moss (ICS, VIRI, and SIRI), and St Bees, UK (FIRI and VIRI) have been used, as well as a near-background peat from Siberia. In the main, these peat samples have been provided as the humic acid fraction, with the main advantage being that the humic acid is extracted in solution and then precipitated (the solution phase providing the homogenisation) which is a key requirement for a reference material. In this paper, we will revisit the peat results and explore their findings. In addition, for the last 8 years, the Letham Moss sample has been used in the SUERC 14 C laboratory as an in-house standard or reference material. This has resulted in several thousand measurements. Such a rich data set is explored to illustrate the benefits arising from the intercomparison program. |
format |
Article in Journal/Newspaper |
author |
Naysmith, Philip Scott, E Marian Dunbar, Elaine Cook, Gordon T |
spellingShingle |
Naysmith, Philip Scott, E Marian Dunbar, Elaine Cook, Gordon T Humics—Their History in the Radiocarbon Intercomparison Studies |
author_facet |
Naysmith, Philip Scott, E Marian Dunbar, Elaine Cook, Gordon T |
author_sort |
Naysmith, Philip |
title |
Humics—Their History in the Radiocarbon Intercomparison Studies |
title_short |
Humics—Their History in the Radiocarbon Intercomparison Studies |
title_full |
Humics—Their History in the Radiocarbon Intercomparison Studies |
title_fullStr |
Humics—Their History in the Radiocarbon Intercomparison Studies |
title_full_unstemmed |
Humics—Their History in the Radiocarbon Intercomparison Studies |
title_sort |
humics—their history in the radiocarbon intercomparison studies |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/rdc.2019.11 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000110 |
genre |
Iceland Siberia |
genre_facet |
Iceland Siberia |
op_source |
Radiocarbon volume 61, issue 5, page 1413-1422 ISSN 0033-8222 1945-5755 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/rdc.2019.11 |
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Radiocarbon |
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61 |
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5 |
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1413 |
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1422 |
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1812815136053788672 |