Stability of nucleobases in small solar system bodies.
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- Tomonori Kikuchi
- 横浜国立大
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- Kensei Kobayashi
- 横浜国立大
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- Yoko Kebukawa
- 横浜国立大
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- Isao Yoda
- 東工大
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- Yoshiyuki Oguri
- 東工大
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- Hitoshi Fukuda
- 東工大
Bibliographic Information
- Other Title
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- 太陽系小天体内での核酸塩基類の安定性の評価
Abstract
<p>A variety of organic compounds have been detected, which suggests extraterrestrial organic compounds contributed to generation of life on the Earth. It was reported that nucleobases were formed in experiments simulating interstellar environments. The presence of nucleobases in meteorites suggested that the organic compounds produced in molecular clouds was once incorporated into small bodies in early solar system, which were then delivered to Earth by meteorites. In the present study, to understand the stability of nucleobases in small bodies in early solar system, nucleobases were dissolved in an aqueous solution of ammonia and/or formaldehyde, were sealed in glass tubes, and were irradiated with gamma-ray from 60Co source. Their recoveries were analyzed by reversed-phase HPLC. There were differences in stability among the different types of nucleobases: Purine bases remaining more than pyrimidine bases. The solid state should also be examined, as the liquid was probably almost gone before the decay of 26Al was almost complete in the actual small-body environment.</p>
Journal
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- Abstracts of Annual Meeting of the Geochemical Society of Japan
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Abstracts of Annual Meeting of the Geochemical Society of Japan 70 (0), 118-, 2023
GEOCHEMICAL SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390579830882757888
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Disallowed