Collaborative analysis of GSJ/AIST geochemical reference materials JCp-1 (Coral) and JCt-1 (Giant Clam)
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- OKAI Takashi
- Geological Survey of Japan/AIST
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- SUZUKI Atsushi
- Geological Survey of Japan/AIST
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- TERASHIMA Shigeru
- Geological Survey of Japan/AIST
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- INOUE Mayuri
- Graduate School of Science, Tohoku University
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- NOHARA Masato
- Geological Survey of Japan/AIST
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- KAWAHATA Hodaka
- Geological Survey of Japan/AIST Graduate School of Science, Tohoku University
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- IMAI Noboru
- Geological Survey of Japan/AIST
Bibliographic Information
- Other Title
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- 産総研地球化学標準物質JCp-1(サンゴ),JCt-1(シャコガイ)の共同分析結果
- サン ソウケン チキュウ カガク ヒョウジュン ブッシツ JCp 1 サンゴ JCt 1 シャコガイ ノ キョウドウ ブンセキ ケッカ
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Abstract
The chemical composition of coral skeleton and clamshell is closely linked to the composition of surface sea water in which skeletal or shell calcium carbonate is precipitated. For this reason, several chemical components in coral and clam have been determined to be indicatrs of sea surface environmental conditions. However, there is no reference material having the same chemical composition as coral or clam. Therefore, GSJ/AIST has issued the reference materials JCp-1 (Coral Porites sp.) and JCt-1 (Giant Clam Tridacna), for the determination and evaluation of elements in coral, clam and other biogenic carbonates. In this study, collaborative analysis for the certification of reference materials JCp-1 and JCt-1 was carried out in ten laboratories. The analytical data were compiled for 9 components (CaO, Ba, Fe, K, Mg, Mn, Na, P and Sr). The ICP-AES and AAS were mainly used, and the analytical results agreed relatively well. In the statistical analysis, the reference values were mainly decided using the robust method. ISO typically recommends that data should be submitted from no fewer than 15 laboratories for deciding the certified values; the reference values given in this paper could be considered as preliminary certified values.
Journal
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- Chikyukagaku
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Chikyukagaku 38 (4), 281-286, 2004-12-27
The Geochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680719812736
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- NII Article ID
- 110008680085
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- NII Book ID
- AN00141280
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- ISSN
- 21885923
- 03864073
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- NDL BIB ID
- 7213016
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
- Crossref
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- Abstract License Flag
- Disallowed