Sequential Chemical Separation of Cr and Ti from a Single Digest for High‐Precision Isotope Measurements of Planetary Materials
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- Yuki Hibiya
- Department of Earth and Planetary Science University of Tokyo Hongo 7‐3‐1 Bunkyo Tokyo 113‐0033 Japan
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- Tsuyoshi Iizuka
- Department of Earth and Planetary Science University of Tokyo Hongo 7‐3‐1 Bunkyo Tokyo 113‐0033 Japan
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- Katsuyuki Yamashita
- Graduate School of Natural Science and Technology Okayama University Okayama 700‐8530 Japan
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- Shigekazu Yoneda
- Department of Science and Engineering National Museum of Nature and Science Tsukuba 305‐0005 Japan
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- Akane Yamakawa
- National Institute for Environmental Studies (NIES) 16‐2 Onogawa Tsukuba 305‐8506 Japan
書誌事項
- 公開日
- 2018-12-21
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1111/ggr.12249
- 公開者
- Wiley
この論文をさがす
説明
<jats:p>Combined determination of Cr and Ti isotopes of planetary materials offers a means with which to investigate their genetic relationship and the evolution of the protoplanetary disk. Here, we report the new sequential chemical separation procedure for combined Cr and Ti isotope ratio measurements. It comprises three steps: (a) Fe removal using <jats:styled-content style="fixed-case">AG</jats:styled-content>1‐X8 anion exchange resin, (b) Ti separation using <jats:styled-content style="fixed-case">TODGA</jats:styled-content> resin and (c) Cr separation using <jats:styled-content style="fixed-case">AG</jats:styled-content>50W‐X8 cation exchange resin (with one additional step of Ti purification using <jats:styled-content style="fixed-case">AG</jats:styled-content>1‐X8 anion exchange resin for samples having high Cr/Ti and Ca/Ti ratios). We applied the proposed procedure to terrestrial and meteorite samples with various compositions. Typical recovery rates of 90–100% were achieved with total procedural Cr and Ti blanks of 3–5 and 2–3 ng, respectively. We measured the Cr and Ti isotope compositions of the separated samples using thermal ionisation mass spectrometry and multiple collector‐inductively coupled plasma‐mass spectrometry, respectively. Our Cr and Ti isotope data were found to be consistent with those of previous studies of individual Cr and Ti isotopic compositions of the meteorites. These results demonstrate the capability of our separation method when applied to combined high‐precision Cr and Ti isotope analyses for single digests of planetary materials.</jats:p>
収録刊行物
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- Geostandards and Geoanalytical Research
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Geostandards and Geoanalytical Research 43 (1), 133-145, 2018-12-21
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360004235519994496
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- ISSN
- 1751908X
- 16394488
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE