WEKO3
インデックスリンク
アイテム
Removal of organic contaminants from iron sulfides as a pretreatment for mineral-mediated chemical synthesis under prebiotic hydrothermal conditions
https://doi.org/10.24517/00067014
https://doi.org/10.24517/00067014a39d82b1-daa6-4c03-a696-2036a03257bd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-USUI-Y-50-495.pdf (660.2 kB)
|
.png)
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2022-09-01 | |||||||
| タイトル | ||||||||
| タイトル | Removal of organic contaminants from iron sulfides as a pretreatment for mineral-mediated chemical synthesis under prebiotic hydrothermal conditions | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| ID登録 | ||||||||
| ID登録 | 10.24517/00067014 | |||||||
| ID登録タイプ | JaLC | |||||||
| 著者 |
Nishizawa, Manabu
× Nishizawa, Manabu× Saitoh, Masafumi× Matsui, Yohei× Usui, Yoichi× Shibuya, Takazo |
|||||||
| 著者別表示 |
臼井, 洋一
× 臼井, 洋一
|
|||||||
| 提供者所属 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 金沢大学理工研究域地球社会基盤学系 | |||||||
| 書誌情報 |
Geochemical Journal 巻 51, 号 6, p. 495-505, 発行日 2017 |
|||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1880-5973 | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0016-7002 | |||||||
| NCID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00654975 | |||||||
| DOI | ||||||||
| 関連タイプ | isIdenticalTo | |||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.2343/geochemj.2.0481 | |||||||
| 出版者 | ||||||||
| 出版者 | Geochemical Society of Japan = 日本地球化学会 | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Iron sulfides are thought to play critical roles in prebiotic chemistry as a synthesis reactant or a mineral catalyst to form key organic compounds and as an active center for proto-enzymes. Laboratory experiments with iron sulfides and other reactants at geologically reasonable low concentrations are essential to test this hypothesis. Therefore, organic contaminants potentially attached to iron sulfides should be removed as much as possible prior to experiments. This study measured amounts of organic contaminants in troilite and pyrite that are/were likely present in extraterrestrial and Hadean Earth hydrothermal environments, respectively. In addition, we evaluated the effectiveness of the anoxic heating (450- 1000°C and 0.1 MPa), hydrothermal processing (300°C and 50 MPa), and wet chemical treatment (acid and/or organic solvents) of these reagents as pretreatments. Commercially available iron sulfide reagents contain considerable amounts of organic matter with up to 1560 ppm carbon and 30 ppm nitrogen. With the best cleaning procedure, anoxic heating removed 66% and 53% of the carbon and nitrogen from troilite, respectively, whereas it removed 25% and <10% of the carbon and nitrogen from pyrite, respectively. Anoxic heating and hydrothermal processing of the troilite reagents reduced the metallic iron impurity contents but produced small amounts of iron oxides. Clearly, future work is needed to establish more efficient protocols to substantially remove persistent organic components. However, appropriate sample selection combined with anoxic heating and mineral separation would allow the preparation of troilite or pyrite fractions with a relatively small amount of refractory organic contaminants (≤40 ppm C, ≤2 ppm N) that could not contribute to the synthesis of ammonia and polymeric biomolecules in simulated extraterrestrial and Hadean Earth hydrothermal conditions, respectively. © 2017 by The Geochemical Society of Japan. | |||||||
| 権利 | ||||||||
| 権利情報 | Copyright © 2017 by The Geochemical Society of Japan. | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 関連URI | ||||||||
| 識別子タイプ | URI | |||||||
| 関連識別子 | https://geochemical-journal.jp/ | |||||||
| 関連名称 | https://geochemical-journal.jp/ | |||||||
| 関連URI | ||||||||
| 識別子タイプ | URI | |||||||
| 関連識別子 | https://www.jstage.jst.go.jp/browse/geochemj/-char/ja/ | |||||||
| 関連名称 | https://www.jstage.jst.go.jp/browse/geochemj/-char/ja/ | |||||||
| 関連URI | ||||||||
| 識別子タイプ | URI | |||||||
| 関連識別子 | http://www.geochem.jp/english/index.html | |||||||
| 関連名称 | http://www.geochem.jp/english/index.html | |||||||
