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

H. Naraoka, H. Mita, K. Hamase, M. Mita, H. Yabuta, K. Saito, K. Fukushima, F. Kitajima, S. A. Sandford, T. Nakamura, T. Noguchi, R. Okazaki, K. Nagao, Mitsuru Ebihara, H. Yurimoto, A. Tsuchiyama, M. Abe, K. Shirai, M. Ueno, T. Yada & 6 others Y. Ishibashi, T. Okada, A. Fujimura, T. Mukai, M. Yoshikawa, J. Kawaguchi

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)61-72
Number of pages12
JournalGeochemical Journal
Volume46
Issue number1
DOIs
Publication statusPublished - 2012 Dec 1
Externally publishedYes

Fingerprint

Asteroids
microparticles
asteroids
organic compounds
Organic compounds
asteroid
organic compound
Secondary ion mass spectrometry
secondary ion mass spectrometry
amino acids
amino acid
mass spectrometry
Amino Acids
reference sample
Diamond
Hydrochloric Acid
ion
Polycyclic Aromatic Hydrocarbons
hydrochloric acid
blanks

Keywords

  • Amino acid analysis
  • Hayabusa spacecraft
  • Itokawa
  • Microparticles
  • ToF-SIMS analysis

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Cite this

Preliminary organic compound analysis of microparticles returned from Asteroid 25143 Itokawa by the Hayabusa mission. / Naraoka, H.; Mita, H.; Hamase, K.; Mita, M.; Yabuta, H.; Saito, K.; Fukushima, K.; Kitajima, F.; Sandford, S. A.; Nakamura, T.; Noguchi, T.; Okazaki, R.; Nagao, K.; Ebihara, Mitsuru; Yurimoto, H.; Tsuchiyama, A.; Abe, M.; Shirai, K.; Ueno, M.; Yada, T.; Ishibashi, Y.; Okada, T.; Fujimura, A.; Mukai, T.; Yoshikawa, M.; Kawaguchi, J.

In: Geochemical Journal, Vol. 46, No. 1, 01.12.2012, p. 61-72.

Research output: Contribution to journalArticle

Naraoka, H, Mita, H, Hamase, K, Mita, M, Yabuta, H, Saito, K, Fukushima, K, Kitajima, F, Sandford, SA, Nakamura, T, Noguchi, T, Okazaki, R, Nagao, K, Ebihara, M, Yurimoto, H, Tsuchiyama, A, Abe, M, Shirai, K, Ueno, M, Yada, T, Ishibashi, Y, Okada, T, Fujimura, A, Mukai, T, Yoshikawa, M & Kawaguchi, J 2012, 'Preliminary organic compound analysis of microparticles returned from Asteroid 25143 Itokawa by the Hayabusa mission', Geochemical Journal, vol. 46, no. 1, pp. 61-72. https://doi.org/10.2343/geochemj.1.0134
Naraoka, H. ; Mita, H. ; Hamase, K. ; Mita, M. ; Yabuta, H. ; Saito, K. ; Fukushima, K. ; Kitajima, F. ; Sandford, S. A. ; Nakamura, T. ; Noguchi, T. ; Okazaki, R. ; Nagao, K. ; Ebihara, Mitsuru ; Yurimoto, H. ; Tsuchiyama, A. ; Abe, M. ; Shirai, K. ; Ueno, M. ; Yada, T. ; Ishibashi, Y. ; Okada, T. ; Fujimura, A. ; Mukai, T. ; Yoshikawa, M. ; Kawaguchi, J. / Preliminary organic compound analysis of microparticles returned from Asteroid 25143 Itokawa by the Hayabusa mission. In: Geochemical Journal. 2012 ; Vol. 46, No. 1. pp. 61-72.
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AU - Abe, M.

AU - Shirai, K.

AU - Ueno, M.

AU - Yada, T.

AU - Ishibashi, Y.

AU - Okada, T.

AU - Fujimura, A.

AU - Mukai, T.

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AU - Kawaguchi, J.

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