A Simple Spectrophotometric Method for the Determination of Dissolved Oxygen in Environmental Waters

• Okumura Minoru

  Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University

• Shiono Takashi

  Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University

• Ando Kunihiro

  Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University

• Seike Yasushi

  Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University

Bibliographic Information

Other Title

• 環境水中溶存酸素の簡便な吸光光度定量法
• カンキョウ スイチュウ ヨウゾン サンソ ノ カンベン ナ キュウコウ コウド テイリョウホウ

Abstract

A simple spectrophotometric method has been developed for the determination of dissolved oxygen in environmental water samples. This method is based on red-brown color development of manganese(III) dissolved from manganese(III) hydroxide, which was oxidized with dissolved oxygen from manganese(II) hydroxide precipitated in an aqueous solution ; the amount of the oxidized manganese(III) hydroxide was equivalent to that of dissolved oxygen in the solution. To a water sample, which was taken into a graduated syringe, a manganese(II) sulfate solution and a sodium hydroxide solution were added to form a manganese(III) hydroxide precipitate, and then the precipitate in the water sample was dissolved with sulfuric acid. The color intensity due to dissolved manganese(III) was proportional to the concentration of dissolved oxygen. Up to 14 mg L⁻¹ of dissolved oxygen could be determined spectrophotometrically at 490 nm with a relative standard deviation of 1.1%. The established method was successfully applicable to environmental water, such as river and lake water samples.

Journal

• BUNSEKI KAGAKU

  BUNSEKI KAGAKU 58 (4), 317-320, 2009

  The Japan Society for Analytical Chemistry

Keywords

• dissolved oxygen
• spectrophotometric determination
• river water
• lake water

Details

• CRID: 1390001204355124224
• NII Article ID: 10025978830
• NII Book ID: AN00222633
• DOI: 10.2116/bunsekikagaku.58.317
• COI: 1:CAS:528:DC%2BD1MXltVGgtLs%3D
• NDL BIB ID: 10269523
• ISSN: 05251931
• Web Site: http://id.ndl.go.jp/bib/10269523
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10269523
• Web Site: http://www.jstage.jst.go.jp/article/bunsekikagaku/58/4/58_4_317/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed