2011 Fiscal Year Final Research Report
Development of a method for very low-level tritium analysis and tritium/helium-3 dating of seawater samples
| Project/Area Number |
21510008
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKAHATA Naoto 東京大学, 大気海洋研究所, 助教 (90345059)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 年代測定 / 希ガス / 同位体 / 分析技術 |
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| Research Abstract |
I developed a method for very low-level tritium analysis of water samples. Duplicate water samples with different tritium concentrations were analyzed by both helium-3 ingrowth and conventional s-decay counting methods. The method compared equaling or surpassing conventional method with respect to detection limit, precision, time and effort for preparation. Tritium concentrations in surface seawaters collected from the Pacific Ocean were analyzed successfully.
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[Journal Article] Helium isotopes of seawater in the Philippine Sea and the western North Pacific2010
Author(s)
Takahata, N., Tokutake, T., Shirai, K., Fujio, S., Tanaka, K., and Sano, Y., J.
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Journal Title
Geochemical Journal
Volume: 44
Pages: 451-460
URL
Peer Reviewed
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[Journal Article] Evaluating Earth degassing in subduction zones by measuring helium fluxes from the ocean floor2010
Author(s)
Lan, F. T., Sano, Y., Yang, F. T., Takahata, N., Shirai, K., and Pinti, D. L.
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Journal Title
Earth and Planetary Science Letters
Volume: 298
Pages: 317-322
DOI
Peer Reviewed
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