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Study on the production and consumption processes of trace NO by stable isotope ratio analysis

Research Project

Project/Area Number 22540497
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geochemistry/Astrochemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

TOYODA Sakae  東京工業大学, 大学院・総合理工学研究科, 准教授 (30313357)

Research Collaborator YAMADA Keita  東京工業大学, 大学院・総合理工学研究科, 准教授 (70323780)
YOSHIDA Naohiro  東京工業大学, 大学院・総合理工学研究科, 教授 (60174942)
下島 涼介  東京工業大学, 大学院・総合理工学研究科, 修士課程学生
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords大気圏 / 水圏化学 安定同位体 / 一酸化窒素 / 安定同位体比 / 微量分析法
Research Abstract

Nitric oxide (NO) is produced by microbiological activities and burning of fuels.It is one of the important trace gasses involved in tropospheric ozone production and nitrogen deposition. Because nitrogen and oxygen isotopes ratios in NO can be effective tools to differentiate the reaction pathways related to NO, this study aimed to develop a simple, rapid, and high-sensitive analytical method for nitrogen and oxygen isotope ratios in NO. Simulation experiments of biomass burning were conducted using grass and wood samples. Based on concentration and isotope ratios in N2O, production and consumption processes of NO were discussed.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (5 results)

All 2012 2011 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] Characterization and production and consumption processes of N O emitted from temperate agricultural soils determined viaisotopomer ratio analysis2012

    • Author(s)
      Toyoda, S., M. Yano, S. Nishimura, H. Akiyama,A. Hayakawa, K.Koba, S. Sudo, K. Yagi,A.Makabe, Y.Tobari, N. O. Ogawa, N.Ohkouchi,K. Yamada, and N. Yoshida
    • Journal Title

      Global Biogeochem. Cycles

      Volume: 25 Issue: 2 Pages: n/a-n/a

    • DOI

      10.1029/2009gb003769

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] Decadal time series of tropospheric N2O isotopomer ratios in the northern hemisphere obtained by the long-term observation at Hateruma island, Japan2012

    • Author(s)
      S. Toyoda, N. Kuroki, N. Yoshida, K. Ishijima, Y. Tohjima, and T. Machida
    • Organizer
      Sixth International Symposium on Isotopomers
    • Place of Presentation
      Washington DC, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] バイオマス燃焼で発生するNOのアイソトポマー比2011

    • Author(s)
      豊田栄、下島涼介、山田桂太、吉田尚弘
    • Organizer
      日本地球化学会第58回年会
    • Place of Presentation
      北海道大学(北海道)
    • Related Report
      2012 Final Research Report
  • [Presentation] バイオマス燃焼で発生するN2Oのアイソトポマー比2011

    • Author(s)
      豊田栄、下島涼介、山田桂太、吉田尚弘
    • Organizer
      日本地球化学会第58回年会
    • Place of Presentation
      北海道大学(北海道)
    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://nylab.chemenv.titech.ac.jp/~stoyoda/index.html

    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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