大気二酸化炭素の酸素同位体比測定用の気体採取バッグによる試料採取

• 浦野 光周

  秋田大学工学資源学部素材資源システム研究施設

• 松葉谷 治

  秋田大学工学資源学部素材資源システム研究施設

書誌事項

タイトル別名

• Collection of atmospheric carbon dioxide by a gas sampling bag for its oxygen isotopic analysis
• タイキ 2サンカタンソ ノ サンソ ドウイタイヒ ソクテイヨウ ノ キタイ サイシュ バッグ ニ ヨル シリョウ サイシュ

抄録

In order to examine feasibility of atmospheric carbon dioxide collection by a gas sampling plastic bag for oxygen isotopic analysis, progress of oxygen isotopic exchange between carbon dioxide and water vapor in air preserved in the bag were experimentally studied. In this study, an aluminum film intercalated plastic bag was used. The experiments were done under two different temperature conditions. In one case (samples C and D), condensation of water vapor happens, while not in the other case (samples A and B). Although the oxygen isotopic exchange progressed without regard to the condensation of water vapor in both cases, the rate of exchange is rather slow, and especially almost no exchange happens during early one or three days. This shows that the collection of air sample by the plastic bag is feasible and the oxygen isotopic ratios of CO₂ can be almost correctly measured, if the CO₂ is able to be separated from the bag within one or three days after the collection. For example, in a case of air samples collected in a tunnel of vehicle road, carbon and oxygen isotopic ratios of CO₂ showed a good mixing relationship of two kinds of CO₂ from automobile exhaust gas and ambient atmosphere.

収録刊行物

• 地球化学

  地球化学 38 (1), 11-16, 2004

  一般社団法人日本地球化学会

キーワード

• Atmospheric CO₂
• Oxygen isotopic ratio
• Gas sampling plastic bag

詳細情報

• CRID: 1390001205743222784
• NII論文ID: 110008680064
• NII書誌ID: AN00141280
• DOI: 10.14934/chikyukagaku.38.11
• ISSN: 21885923
• ISSN: 03864073
• NDL書誌ID: 6909542
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6909542
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可