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2004 Fiscal Year Final Research Report Summary

Study on visual measurement of environmental pollutants using a thixotropy gel

Research Project

Project/Area Number 14580598
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionKanagawa Institute of Technology

Principal Investigator

SAITO Takashi  Kanagawa Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (10186942)

Project Period (FY) 2002 – 2004
Keywordsthixotropy gel / visual measurement / environmental pollutants / simple and rapid determination / simple technology / monitoring / Fe ion / Cu ion
Research Abstract

A new visual measurement of metallic ions using a thixotropy gel was developed. The functional gel changed from solid (gel) to liquid (sol) when vibration was given to the gel. And after stand for a while, the liquid became solid (gel) again. The gel have a high extraction efficiency on liquid-liquid extraction, and have a simple phase separation on before and after extraction. In this study, 3 types of visual measurements were developed as follows.
(1) Simple and rapid visual measurement of Fe(II) ion in water samples using a thixotropy gel.
(2) Simple and rapid visual measurement of Cu(I, II) ions in water samples using a thixotropy gel.
(3) Visual measurement of Cu(I, II) ions by 2 step extractions using thixotropy gels.
The gel changed from colorless to red with increase of the concentration for Fe(II, III) ions by a thixotropy gel containing a bathophenanthroline as a chelate agent, and that changed from colorless to orange for Cu(I, II) ions by a thixotropy gel containing a bathocuproine. Furthermore, for the second extraction using a thixotropy gel, it was found that the Cu concentration was low than the water standard if the gel was colorless. And then, if the gel colored to red, the Cu concentration was over the water standard, and the total Cu concentration was evaluated from the color intensity. In this study, the concentrations of determined based on the color of the gel by visual using a thixotropy gel simply and rapidly.

  • Research Products

    (4 results)

All 2004

All Journal Article (4 results)

  • [Journal Article] 振動応答性ゲルを用いた金属イオンの簡易迅速分析2004

    • Author(s)
      斎藤 貴
    • Journal Title

      MATERIAL STAGE 3巻10号

      Pages: 77-83

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] チキソトロピーゲルを利用した水質の簡易測定2004

    • Author(s)
      斎藤 貴
    • Journal Title

      資源環境対策 40巻8号

      Pages: 64-70

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Simple and Rapid Analysis of Metallic Ions using a vibration responsible gel2004

    • Author(s)
      Takashi Saito
    • Journal Title

      Material Stage Vol.3(No.10)

      Pages: 77-83

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Simple Measurement of Water Quality using a Thixotropy Gel2004

    • Author(s)
      Takashi Saito
    • Journal Title

      J.of Resources and Environment Vol.40(No.8)

      Pages: 64-70

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2006-07-11  

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