日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細

  Low-femtogram sensitivity analysis of polyaromatic hydrocarbons using GC-APLI-TOF mass spectrometry: Extending the target window for aromatic steroids in early Proterozoic rocks

Leider, A., Richter-Brockmann, S., Nettersheim, B. J., Achten, C., & Hallmann, C. (2019). Low-femtogram sensitivity analysis of polyaromatic hydrocarbons using GC-APLI-TOF mass spectrometry: Extending the target window for aromatic steroids in early Proterozoic rocks. Organic Geochemistry, 129, 77-87. doi:10.1016/j.orggeochem.2019.01.015.

Item is

基本情報

表示: 非表示:
アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0003-0D1A-3 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000A-3F74-E
資料種別: 学術論文

ファイル

表示: ファイル
非表示: ファイル
:
BGC3006.pdf (出版社版), 542KB
 
ファイルのパーマリンク:
-
ファイル名:
BGC3006.pdf
説明:
-
OA-Status:
閲覧制限:
制限付き (Max Planck Institute for Biogeochemistry, MJBK; )
MIMEタイプ / チェックサム:
application/pdf
技術的なメタデータ:
著作権日付:
-
著作権情報:
-
CCライセンス:
-
:
BGC3006s1.docx (付録資料), 743KB
 
ファイルのパーマリンク:
-
ファイル名:
BGC3006s1.docx
説明:
-
OA-Status:
閲覧制限:
制限付き (Max Planck Institute for Biogeochemistry, MJBK; )
MIMEタイプ / チェックサム:
application/vnd.openxmlformats-officedocument.wordprocessingml.document
技術的なメタデータ:
著作権日付:
-
著作権情報:
-
CCライセンス:
-

関連URL

表示:

作成者

表示:
非表示:
 作成者:
Leider, Arne1, 著者           
Richter-Brockmann, Sigrid, 著者
Nettersheim, Benjamin J.1, 著者           
Achten, Christine, 著者
Hallmann, Christian1, 著者           
所属:
1Research Group Organic Paleo-Biogeochemistry, Dr. C. Hallmann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497763              

内容説明

表示:
非表示:
キーワード: -
 要旨: Reading the molecular record of early life on Earth can be challenging as a consequence of the thermal decomposition of biomarker hydrocarbons during extended and deep sedimentary burial. Biomarkers that appear absent may still exist in concentrations far below the detection limit of regular analytical techniques. Hence thermal maturation and analytical limitations form a major hurdle for the unambiguous reconstruction of Earth’s earliest ecosystems. Specific degradation products of hopanes and steranes might still carry diagnostic value for the reconstruction of past biota when found in mature oils and sediment extracts, but their concentrations are often exceedingly low. We here report on the use of gas chromatography–time-of-flight-mass spectrometry with laser ionization at atmospheric pressure (GC-APLI-TOF-MS) for the identification and quantification of aromatic steroids. GC-APLI-TOF-MS analyses of a reference oil revealed that triaromatic steroids (TAs) can be detected with significantly higher sensitivity and selectivity compared to commonly used electron impact ionization GC-MS in selected ion monitoring mode, while the limit of detection for retene was as low as 25 fg on column. Paleoproterozoic (1.64 Ga) sedimentary rocks of the Barney Creek Formation yield the so far oldest unambiguous aromatic steroids. GC-APLI-TOF-MS applied to these rocks revealed the presence of TAs in even deeper parts of this succession, where they are represented by short chain homologues only. While the TA-I/(TA-I + TA-II) parameter is principally controlled by thermal degradation of longer chain homologues, the complete disappearance of TA-II already at 435–442 °C Tmax, may point towards an uncommon thermal gradient in the Barney Creek Formation or towards other influencing factors. GC-APLI-TOF-MS proves to be a highly promising tool that might extend molecular geobiological approaches to older sedimentary basins that were hitherto precluded from organic geochemical approaches by their elevated thermal maturity.

資料詳細

表示:
非表示:
言語:
 日付: 2019-01-292019-01-302019-02
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): その他: BGC3006
DOI: 10.1016/j.orggeochem.2019.01.015
 学位: -

関連イベント

表示:

訴訟

表示:

Project information

表示:

出版物 1

表示:
非表示:
出版物名: Organic Geochemistry
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Oxford : Pergamon
ページ: - 巻号: 129 通巻号: - 開始・終了ページ: 77 - 87 識別子(ISBN, ISSN, DOIなど): ISSN: 0146-6380
CoNE: https://pure.mpg.de/cone/journals/resource/954925474428