Polyvinyl Alcohol as a Useful Indicator on Iodometry(II): Temperature Dependence of Iodine Recovery and the Correction Method of Iodine Concentration in the Lower Detection Limit Region

• YOSHlNAGA Tetsutaro

  Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology

• TSUCHIDA Makoto

  Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology

• TOYOSE Yasushi

  Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology

• HIRATSUKA Hiroshi

  Department of Chemistry, Faculty of Engineering, Gunma University

• YAMAYE Makoto

  Faculty of Engineering, Kyushu Kyoritsu University

書誌事項

タイトル別名

• Polyvinyl Alcohol as a Useful Indicator on lodometry (II): Temperature Dependence of Iodine Recovery and the Correction Method of Iodine Concentration in the Lower Detection Limit Region
• Polyvinyl Alcohol as a Useful Indicator on Iodometry 2 Temperature Dependence of Iodine Recovery and the Correction Method of Iodine Concentration in the Lower Detection Limit Region

抄録

In an iodometric titration method for iodine (or chlorine) analysis, the percent recovery of iodine (or chlorine) decreases in the low concentration region and at the relatively higher temperature range. We have shown that the percent recovery vs. concentration curve can be expressed by a simple empirical formula. The empirical formula contains parameters that depend on temperature and those parameters were obtained as a function of temperature. The empirical formula can be used as a correction function for experimental iodine (or chlorine) concentrations. By applying the correction function with the parameters to the experimentally obtained concentrations, we can estimate the reliable concentration in the low concentration region. Estimated concentrations were within 10% (as RSD) of the exact values after the correction in the range of 0.4 mg I₂ L^-1 (≡ ca. 0.1 mg as Cl₂ L^-1) - 4.4 mg I₂ L^-1 (≡ ca. 1.2 mg as Cl₂ L^-1) in the temperature range of 0 to 30°C.

収録刊行物

• Analytical Sciences

  Analytical Sciences 20 (3), 549-552, 2004

  社団法人 日本分析化学会

キーワード

• Analytical Chemistry

詳細情報

• CRID: 1390282679231931008
• NII論文ID: 130004440930
• NII論文ID: 10012721978
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.20.549
• COI: 1:CAS:528:DC%2BD2cXisFGqt7g%3D
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 6884212
• PubMed: 15068303
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6884212
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.20.549.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.20.549/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/20/3/20_3_549/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可