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

• Project/Area Number: 21K18659
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 17:Earth and planetary science and related fields
• 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 – 2024-03-31
• Project Status: Granted (Fiscal Year 2022)
• Budget Amount: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• 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 / 二次元ガスクロマトグラフィー質量分析 / 隕石 / UCM

Outline of Research at the Start

宇宙空間で脂肪族炭化水素が普遍に分布する証拠は天文学・物質科学の両分野から多数発 見されていることから、脂肪族炭化水素は初期太陽系における有機物進化の前駆物質の一 つであると考えられている。一方で、炭素質隕石から抽出される脂肪族炭化水素は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)として検出されるため、同定が困難であり、30年以上研究が行き詰まっていた。そこで本研究では、地球外起源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質量分析を行い、地球外起源であると期待されるUCM炭化水素の分離と同定、そして起源決定に取り組む。

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、小惑星探査計画「はやぶさ2」で帰還した小惑星リュウグウサンプルの初期分析および成果発表を最優先する必要があったため、当該研究を十分に進めることができなかったが、試料の前処理は前年度に完了している。

Current Status of Research Progress

4: Progress in research has been delayed.

Reason

当該年度は、研究代表者がはやぶさ２初期分析固体有機物チームのリーダーとしての任務に専心する必要があったため、個人の研究としての本研究課題の進捗は遅れている。

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。

Research Products

• [Int'l Joint Research] パリ自然史博物館/グルノーブル大学/パリ＝サクレー大学(フランス)
• [Int'l Joint Research] カーネギー研究所/バークレー国立研究所 Advanced Light Source/アメリカ海軍調査研究所(米国)
• [Int'l Joint Research] グルノーブル大学/パリ自然史博物館/パリ＝サクレー大学(フランス)
• [Int'l Joint Research] アメリカ海軍調査研究所/カーネギー研究所(米国)
• [Journal Article] Hydrogen Isotopic Composition of Hydrous Minerals in Asteroid Ryugu (2023)
  • Author(s): Piani L., Nagashima K., Kawasaki N., Sakamoto N., Bajo K.-I., Yabuta H. et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 946 Issue: 2 Pages: L43-L43
  • DOI: 10.3847/2041-8213/acc393
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Uracil in the carbonaceous asteroid (162173) Ryugu (2023)
  • Author(s): Oba Yasuhiro、Koga Toshiki、Takano Yoshinori、Ogawa Nanako O.、Ohkouchi Naohiko、Sasaki Kazunori、Sato Hajime、Glavin Daniel P.、Dworkin Jason P. ... Yabuta Hikaru ... Hayabusa2-initial-analysis SOM team
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 1292-1292
  • DOI: 10.1038/s41467-023-36904-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Interaction between clay minerals and organics in asteroid Ryugu (2023)
  • Author(s): Viennet J.-C.、Roskosz M.、Nakamura T.、et al.
  • Journal Title: Geochemical Perspectives Letters Volume: 25 Pages: 8-12
  • DOI: 10.7185/geochemlet.2307
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Chemical composition of carbonaceous asteroid Ryugu from synchrotron spectroscopy in the mid- to far-infrared of Hayabusa2-returned samples (2023)
  • Author(s): Dartois Emmanuel、Kebukawa Yoko、Yabuta Hikaru、Mathurin Jeremie、Engrand Cecile、Duprat Jean、Bejach Laure、Dazzi Alexandre、Deniset-Besseau Ariane、Bonal Lydie、Quirico Eric et al.
  • Journal Title: Astronomy & Astrophysics Volume: 671 Pages: A2-A2
  • DOI: 10.1051/0004-6361/202244702
  • 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 J. C., Dworkin J. P., Glavin D. P., Elsila J. E., Parker E. T., McLain H. L., Naraoka H., Okazaki R., Takano Y., Tachibana S., Dong G., Zeichner S. S., Eiler J.M., Yurimoto H., Nakamura T., Yabuta H. et al.
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 28-28
  • DOI: 10.1186/s40623-022-01758-4
  • 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 E. T., McLain H. L., Glavin D. P., Dworkin J. P., Elsila J. E., Aponte J.C., Naraoka H., Takano Y., Tachibana S., Yabuta H. et al.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 347 Pages: 42-57
  • DOI: 10.1016/j.gca.2023.02.017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Macromolecular organic matter in samples of the asteroid (162173) Ryugu (2023)
  • Author(s): Yabuta Hikaru、Cody George D.、Engrand Cecile、Kebukawa Yoko、De Gregorio Bradley、Bonal Lydie、Remusat Laurent、Stroud Rhonda、Quirico Eric、Nittler Larry、Hashiguchi Minako、Komatsu Mutsumi et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 9057-9057
  • DOI: 10.1126/science.abn9057
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu (2023)
  • Author(s): Naraoka Hiroshi、Takano Yoshinori、Dworkin Jason P.、Oba Yasuhiro、Hamase Kenji、Furusho Aogu、Ogawa Nanako O.、Hashiguchi Minako、Fukushima Kazuhiko、Aoki Dan ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 9033-9033
  • DOI: 10.1126/science.abn9033
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materials (2023)
  • Author(s): Nakashima Daisuke、Nakamura Tomoki、Zhang Mingming、et al.
  • Journal Title: Nature Communications Volume: 14 Issue: 1 Pages: 1-9
  • DOI: 10.1038/s41467-023-36268-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nonequilibrium spherulitic magnetite in the Ryugu samples (2023)
  • Author(s): Dobrica E., Ishii H. A., Bradley J. P., Ohtaki K., Brearley A. J., Noguchi T., Yabuta et al.
  • 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] Measurement of Microscopic Thermal Diffusivity Distribution for Ryugu Sample by Infrared Lock-in Periodic Heating Method (2023)
  • Author(s): Ishizaki Takuya、Nagano Hosei、Tanaka Satoshi、et al.
  • Journal Title: International Journal of Thermophysics Volume: 44 Issue: 4 Pages: 1-20
  • DOI: 10.1007/s10765-023-03158-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The noble gas and nitrogen relationship between Ryugu and carbonaceous chondrites (2023)
  • Author(s): Broadley M.W.、Byrne D.J.、Fri E.、et al.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 345 Pages: 62-74
  • DOI: 10.1016/j.gca.2023.01.020
  • 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 Zlia、et al.
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 1-11
  • DOI: 10.1186/s40623-022-01762-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution (2023)
  • Author(s): Okazaki Ryuji、Marty Bernard、Busemann Henner、Hashizume Ko、Gilmour Jamie D.、Meshik Alex、Yada Toru、Kitajima Fumio、Broadley Michael W.、Byrne David ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 431-431
  • DOI: 10.1126/science.abo0431
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples (2023)
  • Author(s): Nakamura T.、Matsumoto M.、Amano K.、Enokido Y.、Zolensky M. E.、Mikouchi T.、Genda H.、Tanaka S.、Zolotov M. Y.、Kurosawa K. .. Yabuta H. ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 8671-8671
  • DOI: 10.1126/science.abn8671
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites (2023)
  • Author(s): Yokoyama Tetsuya、Nagashima Kazuhide、Nakai Izumi、Young Edward D.、Abe Yoshinari、Aleon Jerome、Alexander Conel M. O’D.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 7850-7850
  • DOI: 10.1126/science.abn7850
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu (2022)
  • Author(s): Noguchi Takaaki、Matsumoto Toru、Miyake Akira、Igami Yohei、Haruta Mitsutaka、Saito Hikaru、Hata Satoshi、Seto Yusuke、Miyahara Masaaki、Tomioka Naotaka ... Yabuta Hikaru ... et al.
  • Journal Title: Nature Astronomy Volume: 7 Pages: 170-170
  • DOI: 10.1038/s41550-022-01841-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2 (2022)
  • Author(s): Kawasaki Noriyuki、Nagashima Kazuhide、Sakamoto Naoya、Matsumoto Toru、Bajo Ken-ichi、Wada Sohei、Igami Yohei、Miyake Akira、Noguchi Takaaki、Yamamoto Daiki ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 50 Pages: 1-10
  • DOI: 10.1126/sciadv.ade2067
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contribution of Ryugu-like material to Earth’s volatile inventory by Cu and Zn isotopic analysis (2022)
  • Author(s): Paquet Marine、Moynier Frederic、Yokoyama Tetsuya、Dai Wei、Hu Yan、Abe Yoshinari、Aleon Jerome、O’D. Alexander Conel M.、Amari Sachiko、Amelin Yuri ... Yabuta Hikaru ... et al.
  • Journal Title: Nature Astronomy Volume: 7 Issue: 2 Pages: 182-189
  • DOI: 10.1038/s41550-022-01846-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Trace-element analysis of mineral grains in Ryugu rock fragment sections by synchrotron-based confocal X-ray fluorescence (2022)
  • Author(s): Bazi Benjamin、Tack Pieter、Lindner Miles、Vekemans Bart、De Pauw Ella、Tkalcec Beverley、Brenker Frank E.、Garrevoet Jan、Falkenberg Gerald、Yabuta Hikaru et al.
  • Journal Title: Earth, Planets and Space Volume: 74 Issue: 1 Pages: 161-161
  • DOI: 10.1186/s40623-022-01726-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rock Magnetic Characterization of Returned Samples From Asteroid (162173) Ryugu: Implications for Paleomagnetic Interpretation and Paleointensity Estimation (2022)
  • Author(s): Sato Masahiko、Kimura Yuki、Tanaka Satoshi、Hatakeyama Tadahiro、Sugita Seiji、Nakamuna Tomoki、Tachibana Shogo、Yurimoto Hisayoshi、Noguchi Takaaki、Okazaki Ryuji、Yabuta Hikaru et al.
  • Journal Title: Journal of Geophysical Research: Planets Volume: 127 Issue: 11 Pages: 7405-7405
  • DOI: 10.1029/2022je007405
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu (2022)
  • Author(s): Okazaki Ryuji、Miura Yayoi N.、Takano Yoshinori、Sawada Hirotaka、Sakamoto Kanako、Yada Toru、Yamada Keita、Kawagucci Shinsuke、Matsui Yohei、Hashizume Ko ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 46 Pages: 2375-2548
  • DOI: 10.1126/sciadv.abo7239
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu’s nucleosynthetic heritage from the outskirts of the Solar System (2022)
  • Author(s): Hopp Timo、Dauphas Nicolas、Abe Yoshinari、Aleon Jerome、O’D. Alexander Conel M.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi、Bizzarro Martin、Bouvier Audrey ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 46 Pages: 1-10
  • DOI: 10.1126/sciadv.add8141
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Solar System calcium isotopic composition inferred from Ryugu samples (2022)
  • Author(s): Moynier F.、Dai W.、Yokoyama T.、Hu Y.、Paquet M.、Abe Y.、Aleon J.、Alexander C.M.O'D、Amari S.、Amelin Y. ... Yabuta H. ... et al.
  • Journal Title: Geochemical Perspectives Letters Volume: 24 Pages: 1-6
  • DOI: 10.7185/geochemlet.2238
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission (2022)
  • Author(s): Tack Pieter、De Pauw Ella、Tkalcec Beverley、Lindner Miles、Bazi Benjamin、Vekemans Bart、Brenker Frank、Di Michiel Marco、Uesugi Masayuki、Yurimoto Hisayoshi、Nakamura Tomoki ... Yabuta Hikaru ... et al.
  • Journal Title: Earth, Planets and Space Volume: 74 Issue: 1 Pages: 146-146
  • DOI: 10.1186/s40623-022-01705-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Presolar Stardust in Asteroid Ryugu (2022)
  • Author(s): Barosch Jens、Nittler Larry R.、Wang Jianhua、O’D. Alexander Conel M.、De Gregorio Bradley T.、Engrand Cecile、Kebukawa Yoko、Nagashima Kazuhide、Stroud Rhonda M.、Yabuta Hikaru et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 935 Issue: 1 Pages: 1-12
  • DOI: 10.3847/2041-8213/ac83bd
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth (2022)
  • Author(s): Tachibana S.、Abe M. et al.
  • Journal Title: Science Volume: 375 Issue: 6584 Pages: 1011-1016
  • DOI: 10.1126/science.abj8624
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu (2021)
  • Author(s): Yada Toru、Abe Masanao、et al.
  • Journal Title: Nature Astronomy Volume: 6 Issue: 2 Pages: 214-220
  • DOI: 10.1038/s41550-021-01550-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Scientific Targets of Tanpopo: Astrobiology Exposure and Micrometeoroid Capture Experiments at the Japanese Experiment Module Exposed Facility of the International Space Station (2021)
  • Author(s): Yamagishi Akihiko、Yokobori Shin-ichi、Kobayashi Kensei、Mita Hajime、Yabuta Hikaru、Tabata Makoto、Higashide Masumi、Yano Hajime
  • Journal Title: Astrobiology Volume: 21 Issue: 12 Pages: 1451-1460
  • DOI: 10.1089/ast.2020.2426
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Anomalously porous boulders on (162173) Ryugu as primordial materials from its parent body (2021)
  • Author(s): N. Sakatani, S. Tanaka, T. Okada, et al.
  • Journal Title: Nature Astronomy Volume: － Issue: 8 Pages: 766-774
  • DOI: 10.1038/s41550-021-01371-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spectral and Petrographic Properties of Inclusions in Carbonaceous Chondrites and Comparison with In Situ Images from Asteroid Ryugu (2021)
  • Author(s): K. A. Otto, S. E. Schroder, H. D. Scharf, A. Greshake, N. Schmitz, F. Trauthan, S. Pieth, K. Stephan, T.-M. Ho, R. Jaumann, A. Koncz, T. Michalik and H. Yabuta
  • Journal Title: The Planetary Science Journal Volume: 2 Pages: 188-203
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Initial Analysis of Macromolecular Organic Matter in the C-type Asteroid Ryugu Samples Returned by Hayabusa2 (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: Astrobiology Science Conference (AbScicon 2022)
  • Int'l Joint Research / Invited
• [Presentation] Initial Analysis of Macromolecular Organic Matter in the Asteroid Ryugu samples: Overview (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: Goldschmidt Conference 2022
  • Int'l Joint Research
• [Presentation] Hayabusa2 initial analyses of organic matter in the asteroid Ryugu samples (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: COSPAR 2022
  • Int'l Joint Research / Invited
• [Presentation] Potentiality of small body explorations to develop planetary science to frontier material science (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: COSPAR 2022
  • Int'l Joint Research
• [Presentation] An updated overview of macromolecular organic matter in the C-type asteroid Ryugu samples (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: The 85th Annual Meeting of The Meteoritical Society (MetSoc 2022)
  • Int'l Joint Research
• [Presentation] Hayabusa2 Initial Analysis of Macromolecular Organic Matter in the Asteroid Ryugu Samples (2022)
  • Author(s): Yabuta, H. et al.
  • Organizer: Japan Geoscience Union 2022 (JpGU 2022)
• [Presentation] Macromolecular Organic Matter in C-type Asteroid Ryugu (2022)
  • Author(s): Hikaru Yabuta and Hayabusa2 Initial Analysis Organic Macromolecule Team
  • Organizer: The 53rd Lunar and Planetary Science Conference (LPSC)
  • Int'l Joint Research
• [Presentation] An initial look at the distributions and compositions of organic macromolecules in the asteroid Ryugu samples (2021)
  • Author(s): Hikaru Yabuta and Hayabusa2 Initial Analysis Organic Macromolecule Team
  • Organizer: Hayabusa symposium 2022
  • Int'l Joint Research / Invited
• [Book] 地球生命誕生の謎 (2021)
  • Author(s): M・ガルゴー 他、薮田ひかる（監訳）
  • Total Pages: 250
  • Publisher: 西村書店
  • ISBN: 9784867060193