Analysis of transition process at the molecular level of dissolved organic carbon in terrestrial area by utilizing special pulse NMR method
| Project/Area Number |
15H02805
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Kobe University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
近藤 美由紀 国立研究開発法人国立環境研究所, 環境計測研究センター, 研究員 (30467211)
杉山 裕子 岡山理科大学, 理学部, 准教授 (40305694)
内田 雅己 国立極地研究所, 国際北極環境研究センター, 准教授 (70370096)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2015: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
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| Keywords | 溶存有機物 / 1H NMR / 北極湿原 / 炭素循環 / 溶存有機炭素 / 3D-EEM-PARAFAC分析 / SPR-W5-WATERGATE法 / 炭素動態解析法 / 炭素ストック / 地球温暖化 / 物質循環 / 炭素固定 / 土壌有機物 / 炭素フロー |
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| Outline of Final Research Achievements |
Application of 1H NMR analysis using a special pulse sequence (SPR-W5-WATERGATE) was examined on dissolved organic carbon (DOC) which is the key of the carbon cycle process in the terrestrial ecosystem. Optimization of measurement parameters in the sequence, guarantee of quantitative, and examination of pretreatment method were carried out.
As a result, it was found that a good spectrum can be obtained by measuring 0.5 to 24 hours with a sample amount of 1 mL to 50 mL even for test water having a low DOC concentration. Through application examples of DOCs taken from a wetland in the high latitude Arctic region, the utility of this method was demonstrated.
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Report
(4 results)
Research Products
(20 results)
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[Journal Article] Spatial variations in the molecular diversity of dissolved organic matter in water moving through a boreal forest in eastern Finland.2017
Author(s)
Jun’ichiro Ide, Mizue Ohashi, Katsutoshi Takahashi, Yuko Sugiyama, Sirpa Piirainen, Pirkko Kortelainen, Nobuhide Fujitake, Keitaro Yamase, Nobuhito Ohte, Mina Moritani, Miyako Hara, Leena Finer
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Journal Title
Scientific Reports
Volume: 7
Issue: 1
Pages: 42102-42102
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Role of natural organic matter on iodine and 239,240Pu distribution and mobility in environmental samples from the northwestern Fukushima Prefecture, Japan2016
Author(s)
Xu, C., S. Zhang, Y. Sugiyama, N. Ohte, Y.-F. Ho, N. Fujitake, D. I. Kaplan, C. M. Yeager, K. Schwehr, and P. H. Santschi
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Journal Title
Journal of Environmental Radioactivity
Volume: 153
Pages: 156-166
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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