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2002 Fiscal Year Final Research Report Summary

Compound-specific stable hydrogen isotope analysis of natural samples in nano-molar levels and its application to earth environmental sciences

Research Project

Project/Area Number 12359003
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 広領域
Research InstitutionTOKYO METROPOLITAN UNIVERSITY

Principal Investigator

NARAOKA Hiroshi  TOKYO METROPOLITAN UNIVERSITY, Dept. Of Chemistry, Assoc.Prof. (20198386)

Project Period (FY) 2000 – 2002
KeywordsHydorgen isotope / Organic compounds / Sub-nano molar / Analytical development / Natural samples / Lipid molecules / Vegetation / Meteorite
Research Abstract

Compound-specific hydrogen isotope measurement has been developed at sub-nano molar level using gas chromatography/pyrolysis/isotope ratio mass spectrometry (GC/pyrolysis/IRMS). Isotopic calibration and sample preparation including derivatization of unvolatile compounds and separation of co-eluted compounds by silica gel chromatography were also established for more precise isotope measurement. Finally, it is successful to determine a OD value of natural samples with precision of less than 5‰ using ・0ng hydrogen-containing organic compound. We applied the established method to determine δD values of n-alkanes, n-alkanoic acids, n-alkanols and sterols of biological materials and sediments, in order to discuss their isotope fractionation mechanisms during different biosynthetic pathways as well as their source, diagenetic effects and transportation processes in sediments. We also conducted the δD measurement of polycyclic aromatic hydrocarbons such as pyrene and fluoranthene in carbonaceous chondrites to find different the δD value in spite of their structural isomers each other (C_<16>H_<10>). In addition, hydrogen isotope exchange of pyrene and fluoranthene occurred in hydrothermal solutions under acidic condition, where where hydrogens have exchanged more easily between pyrene and water relative to between fluoranthene and water. The kinetically different behavior between pyrene and fluoranthene coincides with the two-series (pyrene-series and fluoranthene-series) PAH formation mechanisms in carbonaceous chondrites inferred from carbon isotopic compositions of PAH.
Originally this reserch project was planned for 4 years (2000-2003 FY). However, since this project has successfully continued to a new research project as titled "Multi-stable isotope systematics of individual organic compounds in cosmogeochemical samples", this project ended up to make a final report.

  • Research Products

    (13 results)

All 2003 2002 Other

All Journal Article (12 results) Book (1 results)

  • [Journal Article] Geochemical and organic carbon isotope studies across the continental Permian-Triassic boundary of Ranigay Basirn2003

    • Author(s)
      A.Sarkar, H.Yoshioka, ら
    • Journal Title

      Palaeogeogr. Palaeoclimat. Palaeoecol. 191

      Pages: 1-14

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Glacial-interglacial changes in organic carpon, nitrogen and sulfur accomulation in Lake Baikal sediment2003

    • Author(s)
      T.Watanabe, H.Naraoka, ら
    • Journal Title

      Geochemical Journal 37

      Pages: 493-502

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] A different behavior of hydrogen isotope exchange petureen two PAH isomers (fluoranthene and pyrene)2003

    • Author(s)
      Y.Oba, H.Naraoka
    • Journal Title

      Res.Org.Geochem. 18

      Pages: 29-35

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Geochemical and organic carbon isotope studies across the continental Permean-Triassic boundary of Raniganj Basin, eastern India.2003

    • Author(s)
      A.Sarkar, H.Yoshioka, M.Ebihara, H.Naraoka
    • Journal Title

      Palaeogeogr. Palaeoclimat. Palaeoecol. 191

      Pages: 1-14

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Glacial- interglacial changes in organic carbon, nitrogen and sulfur accumulation in Lake Baikal sediment over the past 250 kyr.2003

    • Author(s)
      T.Watanabe, H.Naraoka, M.Kinoshita, M.Nishimura, T.Kawai
    • Journal Title

      Geochem.J. 37

      Pages: 493-502

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] A different behavior of hydrogen isotope exchange between two PAH isomers (fluoranthene and pyrene).2003

    • Author(s)
      Y.Oba, H.Naraoka
    • Journal Title

      Res.Org.Geochem. 18

      Pages: 29-35

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Carbon isotope fractionation during permanganate oxidation of chlorinated ethylenes (cDCE. TCE. PCE)2002

    • Author(s)
      S.R.Poulson., H.Naraoka
    • Journal Title

      Environ, Science and Technology 36

      Pages: 3270-3274

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Vertical distributions and δ^<13>C Isotopic compositions of PAHs in Chidorigafuchi Moat sediment, Japan2002

    • Author(s)
      T.Okuda, H.Kumata, ら
    • Journal Title

      Organic Geochemistry 33

      Pages: 843-848

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 有機分子レベル安定水素同位体比測定と地球環境科学への応用2002

    • Author(s)
      奈良岡浩, 力石嘉人
    • Journal Title

      Radioisotopes 51

      Pages: 249-250

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Carbon isotope fractionation during permanganate oxidation of chlorinated ethylenes (cDCE, TCE, PCE).2002

    • Author(s)
      S.R.Poulson, H.Naraoka
    • Journal Title

      Environ.Sci.Tech. 36

      Pages: 3270-3274

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Vertical distributions and δ13^C isotopic compositions of PAHs in Chidorigafuchi Moat sediment, Japan.2002

    • Author(s)
      T.Okuda, H.Kumata, H.Naraoka, R.Ishiwatari, H.Takada
    • Journal Title

      Org.Geochem. 33

      Pages: 843-848

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Compound-specific hydrogen isotope analysis its application to earth environmental sciences (in Japanese).2002

    • Author(s)
      H.Naraoka, Y.Chikaraishi
    • Journal Title

      Radioisotopes. 51

      Pages: 249-250

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 地球化学講座第4巻「有機地球化学」(分担)

    • Author(s)
      奈良岡浩
    • Publisher
      培風館(印刷中)
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2011-06-18  

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