従来型ガスクロマトグラフィーで分離不能な隕石中炭化水素混合物の分離と同定の試み

2023 Fiscal Year Research-status Report

• Project/Area Number: 21K18659
• Research Institution: Hiroshima University
• Principal Investigator: 薮田 ひかる 広島大学, 先進理工系科学研究科(理), 教授 (30530844)
• Project Period (FY): 2021-07-09 – 2025-03-31
• Keywords: 二次元ガスクロマトグラフィー / 地球外有機物 / 脂肪族炭化水素 / シクロアルカン / 分岐鎖アルカン

Outline of Annual Research Achievements

本研究では、地球外起源のUnresolved Complex Mixture（ガスクロマトグラフィーでは分離できない複雑な混合物;UCM）の構造決定を目的として、炭素質隕石に含まれる脂肪族炭化水素の二次元ガスクロマトグラフィー（GCxGC）質量分析を行い、共溶出化合物の分離・同定を行うことを目的としている。当該年度は、溶媒抽出後の炭素質コンドライト隕石粉末を酸処理し、分離精製した不溶性有機物残渣の含水熱分解を行い、分解生成物を抽出した。当該年度は、研究代表者の一身上の都合により当初の予定どおりに研究を達成することが困難となったため、分解生成物の二次元ガスクロマトグラフィー質量分析測定までは到達しなかったが、研究期間後も本研究を継続し、測定を実施する予定である。

Current Status of Research Progress

4: Progress in research has been delayed.

Reason

研究代表者の一身上の都合により、当初の予定どおりに研究を達成することが困難となったため。

Strategy for Future Research Activity

試料の抽出は完了したので、次年度は二次元ガスクロマトグラフィー質量分析測定を行う。

Causes of Carryover

研究代表者の一身上の都合により、当初の予定どおりに研究を達成することが困難となったため、次年度使用額が生じた。この分は、隕石試料の化学処理のために必要な消耗品経費に計上する。

Research Products

• [Int'l Joint Research] アリゾナ州立大学/カーネギー研究所/米国海軍調査研究所(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: アリゾナ州立大学/カーネギー研究所/米国海軍調査研究所
• [Journal Article] Influx of nitrogen-rich material from the outer Solar System indicated by iron nitride in Ryugu samples (2024)
  • Author(s): Matsumoto, T., Noguchi, T., Miyake, A. and 74 more (Yabuta, H.は56番目)
  • Journal Title: Nature Astronomy Volume: 8 Pages: 207-215
  • DOI: 10.1038/s41550-023-02137-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites (2024)
  • Author(s): Yan Hu, Frederic Moynier, Wei Dai, and 89 more (Yabuta, H.は72番目)
  • Journal Title: Icarus Volume: 409 Pages: 115884
  • DOI: 10.1016/j.icarus.2023.115884
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The thermal history of Ryugu based on Raman characterization of Hayabusa2 samples (2024)
  • Author(s): Lydie Bonal, Eric Quirico, Gilles Montagnac, Mutsumi Komatsu, Yoko Kebukawa, Hikaru Yabuta and 51 more
  • Journal Title: Icarus Volume: 408 Pages: 115826
  • DOI: 10.1016/j.icarus.2023.115826
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium (2023)
  • Author(s): Zeichner, Sarah S.; Aponte, Jose; Bhattacharjee, Surjyendu and 74 more (Yabuta, H.は21番目)
  • Journal Title: Science Volume: 382 Pages: 1411-1416
  • DOI: 10.1126/science.adg630
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evidence of global space weathering by solar wind on asteroid 162173 Ryugu (2023)
  • Author(s): Hiroi, T.; Milliken, R. E.; Robertson, K. M. and 31 more (Yabuta, H.は11番目)
  • Journal Title: Icarus Volume: 406 Pages: 115755
  • DOI: 10.1016/j.icarus.2023.115755
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The spatial distribution of soluble organic matter and their relationship to minerals in the asteroid (162173) Ryugu (2023)
  • Author(s): Hashiguchi, Minako; Aoki, Dan; Fukushima, Kazuhiko and 51 more (Yabuta, H.は34番目)
  • Journal Title: Earth, Planets and Space Volume: 75 Pages: 73
  • DOI: 10.1186/s40623-023-01792-w
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] MASCOT's in situ analysis of asteroid Ryugu in the context of regolith samples and remote sensing data returned by Hayabusa2 (2023)
  • Author(s): Otto, Katharina; Ho, Tra-Mi; Ulamec, Stephan and 20 more (Yabuta, H.は20番目)
  • Journal Title: Earth, Planets and Space Volume: 75 Pages: 51
  • DOI: 10.1186/s40623-023-01805-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] PAHs, hydrocarbons, and dimethylsulfides in Asteroid Ryugu samples A0106 and C0107 and the Orgueil (CI1) meteorite (2023)
  • Author(s): Aponte, Jose; C.; Dworkin, Jason P.; Glavin, Daniel P. and 32 more (Yabuta, H.は16番目)
  • Journal Title: Earth, Planets and Space Volume: 75 Pages: 28
  • DOI: 10.1186/s40623-022-01758-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Small grains from Ryugu: handling and analysis pipeline for infrared synchrotron microspectroscopy (2023)
  • Author(s): Rubino, Stefano; Dionnet, Zelia; Aleon-Toppani, Alice and 25 more (Yabuta, H.は22番目)
  • Journal Title: Earth, Planets and Space Volume: 75 Pages: 4
  • DOI: 10.1186/s40623-022-01762-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Magnesium Isotope Composition of Samples Returned from Asteroid Ryugu (2023)
  • Author(s): Bizzarro, Martin; Schiller, Martin; Yokoyama, Tetsuya and 87 more (Yabuta, H.は70番目)
  • Journal Title: The Astrophysical Journal Letters, Volume: 958 Pages: L25
  • DOI: 10.3847/2041-8213/ad09d9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Soluble organic matter Molecular atlas of Ryugu reveals cold hydrothermalism on C-type asteroid parent body (2023)
  • Author(s): Schmitt-Kopplin, Philippe; Hertkorn, Norbert; Harir, Mourad and 56 more (Yabuta, H.は15番目)
  • Journal Title: Nature Communications Volume: 14 Pages: 6525
  • DOI: 10.1038/s41467-023-42075-y
  • Peer Reviewed
• [Journal Article] Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu (2023)
  • Author(s): Yoshimura, Toshihiro; Takano, Yoshinori; Naraoka, Hiroshi and 84 more (Yabuta, H.は26番目)
  • Journal Title: Nature Communications Volume: 14 Pages: 5284
  • DOI: 10.1038/s41467-023-40871-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Oxygen Isotopic Composition of Samples Returned from Asteroid Ryugu with Implications for the Nature of the Parent Planetesimal (2023)
  • Author(s): Tang, Haolan; Young, Edward D.; Tafla, Lauren and 87 more (Yabuta, H.は70番目)
  • Journal Title: The Planetary Science Journal Volume: 4 Pages: 144
  • DOI: 10.3847/PSJ/acea62
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Visualization of nanoscale magnetic domain states in the asteroid Ryugu (2023)
  • Author(s): Kimura, Yuki; Kato, Takeharu; Tanigaki, Toshiaki and 33 more (Yabuta, H.は27番目)
  • Journal Title: Scientific Reports Volume: 13 Pages: 14096
  • DOI: 10.1038/s41598-023-41242-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu's Anhydrous Ingredients and Their Spectral Link to Primitive Dust from the Outer Solar System (2023)
  • Author(s): Brunetto, R.; Lantz, C.; Fukuda, Y. and 37 more (Yabuta, H.は22番目)
  • Journal Title: The Astrophysical Journal Letters Volume: 951 Pages: L33
  • DOI: 10.3847/2041-8213/acdf5c
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Extraterrestrial amino acids and amines identified in asteroid Ryugu samples returned by the Hayabusa2 mission (2023)
  • Author(s): Parker, Eric T.; McLain, Hannah L.; Glavin, Daniel P. and 27 more (Yabuta, H.は10番目)
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 347 Pages: 42-57
  • DOI: 10.1016/j.gca.2023.02.017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Nonequilibrium spherulitic magnetite in the Ryugu samples (2023)
  • Author(s): Dobrica, Elena; Ishii, Hope A.; Bradley, John P. and 75 more (Yabuta, H.は56番目)
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 346 Pages: 65-75
  • DOI: 10.1016/j.gca.2023.02.003
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Hydrogen Isotopic Composition of Hydrous Minerals in Asteroid Ryugu (Yabuta, H.は68番目) (2023)
  • Author(s): Piani, Laurette; Nagashima, Kazuhide; Kawasaki, Noriyuki and 85 more
  • Journal Title: The Astrophysical Journal Letters Volume: 946 Pages: L43
  • DOI: 10.3847/2041-8213/acc393
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] 探査機「はやぶさ２」が持ち帰った小惑星リュウグウ試料中の有機物分析 (2023)
  • Author(s): 薮田 ひかる、奈良岡 浩、はやぶさ２初期分析固体有機物チーム・可溶性有機物チーム、圦本尚義、中村智樹、野口高明、岡崎隆司、坂本佳奈子、橘省吾、渡邊誠一郎、津田雄一
  • Organizer: 質量分析討論会
  • Invited
• [Presentation] Organic Matter in the Samples of Asteroid Ryugu Returned by the Hayabusa2 Spacecraft (2023)
  • Author(s): Hikaru Yabuta, Hiroshi Naraoka, Hayabusa2 Initial analysis Organic macromolecule and Soluble organic molecule teams, Yurimoto H., Nakamura T., Noguchi T., Okazaki R., Sakamoto K., Tachibana S., Watanabe S., and Tsuda Y.
  • Organizer: The 2023 Gordon Research Conference on Origins of Solar Systems
  • Int'l Joint Research / Invited
• [Presentation] Organic Matter in the Samples of Asteroid Ryugu Returned by the Hayabusa2 Spacecraft (2023)
  • Author(s): Hikaru Yabuta, Hiroshi Naraoka, Hayabusa2 Initial analysis Organic macromolecule and Soluble organic molecule teams, Yurimoto H., Nakamura T., Noguchi T., Okazaki R., Sakamoto K., Tachibana S., Watanabe S., and Tsuda Y.
  • Organizer: Molecular Origins of Life, Munich 2023
  • Int'l Joint Research / Invited
• [Presentation] Organic matter in the samples of carbonaceous asteroid Ryugu collected by Hayabusa2 (2023)
  • Author(s): Hikaru Yabuta, Hiroshi Naraoka, Hayabusa2 Initial analysis Organic macromolecule and Soluble organic molecule teams, Yurimoto H., Nakamura T., Noguchi T., Okazaki R., Sakamoto K., Tachibana S., Watanabe S., and Tsuda Y.
  • Organizer: Joint ISSOL/IAU-Astrobiology Commission meeting (Origins 2023)
  • Int'l Joint Research / Invited