Preliminary organic compound analysis of microparticles returned from Asteroid 25143 Itokawa by the Hayabusa mission

DOI Web Site 被引用文献20件 参考文献38件
  • NARAOKA H.
    Department of Earth and Planetary Sciences, Kyushu University
  • MITA H.
    Department of Life, Environment and Materials Science, Fukuoka Institute of Technology
  • HAMASE K.
    Graduate School of Pharmaceutical Sciences, Kyushu University
  • MITA M.
    Frontier Science Div., Shiseido Co. Ltd.
  • YABUTA H.
    Department of Earth and Space Sciences, Osaka University
  • SAITO K.
    Graduate School of Bioagricultural Sciences, Nagoya University
  • FUKUSHIMA K.
    Graduate School of Bioagricultural Sciences, Nagoya University
  • KITAJIMA F.
    Department of Earth and Planetary Sciences, Kyushu University
  • SANDFORD S. A.
    Astrophysics Branch, NASA-Ames Research Center
  • NAKAMURA T.
    Department of Earth and Planetary Material Sciences, Tohoku University
  • NOGUCHI T.
    College of Science, Ibaraki University
  • OKAZAKI R.
    Department of Earth and Planetary Sciences, Kyushu University
  • NAGAO K.
    Geochemical Research Center, The University of Tokyo
  • EBIHARA M.
    Department of Chemistry, Tokyo Metropolitan University
  • YURIMOTO H.
    Department of Earth and Planetary Sciences, Hokkaido University
  • TSUCHIYAMA A.
    Department of Earth and Space Sciences, Osaka University
  • ABE M.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • SHIRAI K.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • UENO M.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • YADA T.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • ISHIBASHI Y.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • OKADA T.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • FUJIMURA A.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • MUKAI T.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • YOSHIKAWA M.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
  • KAWAGUCHI J.
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)

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Microparticles recovered from the Asteroid 25143 Itokawa surface by the Hayabusa mission have been examined for the occurrence of soluble organic compounds. After five individual particles (~50 to 100 μm in diameter) were rinsed with organic solvents on a diamond plate, two extracts were hydrolyzed with hydrochloric acid for amino acid analysis (AAA), and three extracts were combined for time of flight-secondary ion mass spectrometry (ToF-SIMS) to look for other organic compounds, including polycyclic aromatic hydrocarbons. The organic compounds detected by both methods have the same concentrations as those in blank levels, indicating that indigenous organic compounds are not found in this study. Based on the sensitivities of AAA and ToF-SIMS with the reference sample analyses, the concentrations of indigenous organics in the samples are below part-per-million (ppm), if present.

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