過酸化水素水処理‐比濁法による硫黄分析と堆積環境

• 佐藤 裕司

  兵庫県企業庁船津浄水場

書誌事項

タイトル別名

• Sulfur analysis of the sediment by the H2O2 treatment-turbidimetric method: A simple method for studying the paleoenvironment.
• カサンカ スイソスイ ショリ ヒダクホウ ニ ヨル イオウ ブンセキ ト タイ
• A Simple Method for Studying the Paleoenvironment

抄録

Sedimentary sulfur mainly of FeS₂ (pyrite) was oxidized to sulfate with 30% H₂O₂ and the concentration of sulfate was determined by the turbidimetric method.<br>Treatment procedures were as follows.<br>1) Wet sediment (approximately 0.3g) was washed twice with distilled water followed by centrifugation (3, 000rpm, 15mins), and dried at 80°C.<br>2) The dry sample (0.1g) was reacted with 10ml 30% H₂O₂ for 30mins at room temperature and then for 2mins at 90-100°C.<br>3) When oxidation reaction ceased (usually after 15hrs), 50ml distilled water was added and the sample filtered through a 0.45μm membrane filter to separate extract from residue. Filtrate was rinsed and brought to 100ml volume with distilled water for the turbidimetric method.<br>The content of sedimentary sulfur determined by this method was much higher in the marine and brackish water sediments than in the freshwater sediments. The vertical variation in sulfur content was in good agreement with the succession of diatom assemblages. As a sulfur analysis indicative of paleoenvironmental changes, this method is considered useful for its simplicity and for the small amount of sample used.

収録刊行物

• 第四紀研究

  第四紀研究 28 (1), 35-40, 1989

  日本第四紀学会

キーワード

• General Earth and Planetary Sciences
• General Environmental Science

詳細情報

• CRID: 1390001206497079296
• NII論文ID: 130001562955
• NII論文ID: 10003623418
• NII書誌ID: AN0034136X
• DOI: 10.4116/jaqua.28.35
• ISSN: 18818129
• ISSN: 04182642
• ISSN: http://id.crossref.org/issn/04182642
• NDL書誌ID: 3230292
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3230292
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可