Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions
Magnesium isotope ratios in carbonate rocks and minerals play an important role in tracing geological and biological processes. We report δ 26 Mg DSM3 values for the first time in ten carbonate reference materials (GBW07865, GBW07114, GBW(E)070159, GBW07136, GBW07108, GBW03109a, GBW07120, GBW07214a,...
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crwiley:10.1111/ggr.12582 2024-09-15T18:12:02+00:00 Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions An, Yajun Li, Xin Lu, Wenning Xu, Jianbing Xue, Yongli Gong, Qing Peng, Yang Liu, Fang Ling, Mingxing Zhang, Zhaofeng National Key Research and Development Program of China 2024 http://dx.doi.org/10.1111/ggr.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ggr.12582 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geostandards and Geoanalytical Research ISSN 1639-4488 1751-908X journal-article 2024 crwiley https://doi.org/10.1111/ggr.12582 2024-08-30T04:10:49Z Magnesium isotope ratios in carbonate rocks and minerals play an important role in tracing geological and biological processes. We report δ 26 Mg DSM3 values for the first time in ten carbonate reference materials (GBW07865, GBW07114, GBW(E)070159, GBW07136, GBW07108, GBW03109a, GBW07120, GBW07214a, IAEA‐B‐7 and IAEA‐CO‐8) with calcium to magnesium mass ratios around 1300 g g −1 and ultra‐low Mg mass fractions of 295 μg g −1 . A combination of AG MP‐50 (100–200 mesh) and AG 50W‐X12 (200–400 mesh) resins for the matrix extraction and multi‐collector inductively coupled plasma‐mass spectrometry (MC‐ICP‐MS) were used for the isotopic measurements. This measurement procedure is applicable to materials with high and low Mg mass fractions (e.g., carbonates, lunar highlands anorthosites, ice core). It was validated using various types of reference material. In‐house synthetic solutions with 1000 and 1300 g g −1 [Ca]/[Mg] mass ratios yielded δ 26 Mg DSM3 values at 2 s = ±0.05‰ ( n = 62), ‐4.89‰ and ‐4.89‰, respectively, indistinguishable from those of the pure Mg solutions, at ‐4.91‰. δ 26 Mg DSM3 values in well characterised carbonatite and carbonate reference materials (such as JDo‐1, COQ‐1, GBW07133, GBW07217a and GBW07129), with varying MgO and CaO mass fractions, were in agreement with literature values. Article in Journal/Newspaper ice core Wiley Online Library Geostandards and Geoanalytical Research |
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Wiley Online Library |
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English |
description |
Magnesium isotope ratios in carbonate rocks and minerals play an important role in tracing geological and biological processes. We report δ 26 Mg DSM3 values for the first time in ten carbonate reference materials (GBW07865, GBW07114, GBW(E)070159, GBW07136, GBW07108, GBW03109a, GBW07120, GBW07214a, IAEA‐B‐7 and IAEA‐CO‐8) with calcium to magnesium mass ratios around 1300 g g −1 and ultra‐low Mg mass fractions of 295 μg g −1 . A combination of AG MP‐50 (100–200 mesh) and AG 50W‐X12 (200–400 mesh) resins for the matrix extraction and multi‐collector inductively coupled plasma‐mass spectrometry (MC‐ICP‐MS) were used for the isotopic measurements. This measurement procedure is applicable to materials with high and low Mg mass fractions (e.g., carbonates, lunar highlands anorthosites, ice core). It was validated using various types of reference material. In‐house synthetic solutions with 1000 and 1300 g g −1 [Ca]/[Mg] mass ratios yielded δ 26 Mg DSM3 values at 2 s = ±0.05‰ ( n = 62), ‐4.89‰ and ‐4.89‰, respectively, indistinguishable from those of the pure Mg solutions, at ‐4.91‰. δ 26 Mg DSM3 values in well characterised carbonatite and carbonate reference materials (such as JDo‐1, COQ‐1, GBW07133, GBW07217a and GBW07129), with varying MgO and CaO mass fractions, were in agreement with literature values. |
author2 |
National Key Research and Development Program of China |
format |
Article in Journal/Newspaper |
author |
An, Yajun Li, Xin Lu, Wenning Xu, Jianbing Xue, Yongli Gong, Qing Peng, Yang Liu, Fang Ling, Mingxing Zhang, Zhaofeng |
spellingShingle |
An, Yajun Li, Xin Lu, Wenning Xu, Jianbing Xue, Yongli Gong, Qing Peng, Yang Liu, Fang Ling, Mingxing Zhang, Zhaofeng Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
author_facet |
An, Yajun Li, Xin Lu, Wenning Xu, Jianbing Xue, Yongli Gong, Qing Peng, Yang Liu, Fang Ling, Mingxing Zhang, Zhaofeng |
author_sort |
An, Yajun |
title |
Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
title_short |
Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
title_full |
Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
title_fullStr |
Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
title_full_unstemmed |
Validation of Mg Isotopic Measurements for the Characterisation of Ten Carbonate Reference Materials with Ultra‐Low Mg Mass Fractions |
title_sort |
validation of mg isotopic measurements for the characterisation of ten carbonate reference materials with ultra‐low mg mass fractions |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1111/ggr.12582 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ggr.12582 |
genre |
ice core |
genre_facet |
ice core |
op_source |
Geostandards and Geoanalytical Research ISSN 1639-4488 1751-908X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ggr.12582 |
container_title |
Geostandards and Geoanalytical Research |
_version_ |
1810449621125693440 |