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Development of chemical sensors for concentrated solutions

Research Project

Project/Area Number 09650892
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 工業分析化学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

IMATO Toshihiko  Kyushu University, Graduate School of Engineering, Professor, 工学部, 教授 (50117066)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsChemical Sensor / Potentiometry / Concentrated solution / pH sensor / Buffer solution / 酸・塩基 / 酸、塩基 / 金属イオン / 電位差検出
Research Abstract

The purpose of this project is to develop chemical sensors for concentrated solution of acids, bases and redox compounds. The sensor consists of an inner electrode and an inner filling buffer solution prepared by polyelectrolyte, which are covered with a dialysis membrane. Followings are the summary of the results obtained by this project.
(1)Potentiometric sensors for redox compounds
The potentiometric sensors for hydrogen peroxide and ascorbic acid were developed. The sensors consist of a platinum electrode and a silver-silver chloride reference electrode as the inner electrodes and a potential buffer solution prepared by polystyrene sulfonic acid in Fe(II) and Fe(III) form as the inner filling solution. The end of the sensors was covered with a dialysis membrane (Viking membrane). The volume of the inner filling solution was less than 30 muL, which is capable to change by syringe pump. When the sensor was immersed into the hydrogen peroxide solution, hydrogen, hydrogen peroxide diffus … More ed into the inner filling solution across the dialysis membrane. The potential of the inner platinum electrode is changed as increasing concentration of hydrogen peroxide diffused due to oxidation of Fe(II) to Fe(III) with hydrogen peroxide after 30 min time lag. The potential change with time was found to be linear to the concentration of hydrogen peroxide in the range from 0.1 M to 1 M.Ascorbic acid was also successfully determined by the developed sensor.
(2)Potentiometric pH sensor for concentrated acids and bases
The similar pH sensor to the above sensor for redox compounds was developed. The inner filling solution is a pH buffer solution prepared by polyacrylic acid and polyacrylic acid sodium salt. An antimony electrode was uses as the inner electrode. The response of the developed pH sensor was examined by immersing the sensor into HCl solution of 2 M to 8 M.The potential change was observed to increase with increasing time after 3-5 min time lag when the sensor was immersed into the sample solution. The potential change with time was found to be linear to the concentration of HCl from 2 M to 8 M.The effective area and thickness of the dialysis membrane were found to be important factor to control the amount of HCl diffused in the inner filling solution. The pH sensor for concentrated sodium hydrooxide was also developed by using polyethyleneimin and its hydrochloride as the inner filling solution. Less

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Takashi Masadome: "Flow injection determination of anionic polyelectrolytes using an anionic surfactant-selective plasticized poly(vinyl chloride) membrane electrode detector" Fresenius' Journal of Analytical Chemistry. 357. 901-903 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiroki Ohura: "Potentiometric Flow Injection Determination of Amylase Activity by Using Hexacyanoferrate(III)-Hexacyanoferrate (II) Potenital Buffer" Talanta. 45. 565-573 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Aki Sakai: "Flow Injection Analysis for Residual Chlorine Using Pb(II) Ion Selective Electrode Detector" Talanta. 45. 575-581 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Masadome: "Flow Injection Determination of Dodecylsulfate Using a Dodecylsulfate-Selective Plasticized Poly(Vinyl Chloride) Membrane Electrode Detector" Journal of Flow Injection Analysis. 15. 242-247 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 今任稔彦: "「化学入門」 第3章 物質の変化" 共立出版, 40 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 正留 隆: "「機器分析の基礎」 第13章 電気化学分析" 裳華房, 25 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Masadome: "Flow injection determination of anionic polyelectrolytes using an anionic surfactant-selective plasticized poly (vinyl chloride) membrane electrode detector" Fresenius' Journal of Analytical Chemistry. 357. 901-903 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiroki Ohura: "Potentiometric Flow Injection Determination of Amylase Activity by Using Hexacyanoferrate (III) -Hexacyanoferrate (II) Potential Buffer" Talanata. 45. 565-573 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Aki Sakai: "Flow Injection Analysis for Residual Chlorine Using Pb (II) Ion Selective Electrode Detector" Talanta. 45. 575-581 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Masadome: "Flow Injection Determination of Dodecylsulfate Using a Dodecyl-sulfate-Selective Plasticized Poly (Vinyl Chloride) Membrane Electrode Detector" Journal of Flow Injection Analysis. 15. 242-247 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Toshihiko Imato: "Change of matter "Introduction of Chemistry"" Chapter. 3. 40 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Masadome: "Electrochemical Analysis "Fundamental Instrumental Analysis"" Chapter. 13. 25 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Masadome me: "Flow injection determination of anionic polyelectrolytes using an anionic surfactant selective plasticized poly(vinyl chloride) membrane electrode detector" Fresenius'Journal of Analytical Chemistry. 357. 901-903 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hiroki Ohura: "Potentiometric Flow Injection Determination of Amylase Activity by Using Hexacyanoferrate(III)-Hexacyanoferrate(II) Potenital Buffer" Talanta. 45. 565-573 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Aki Sakai: "Flow Injection Analysis for Residual Chlorine Using Pb(II) Ion Selective Electrode Detector" Talanta. 45. 575-581 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takashi Masadome: "Flow Injection Determination of Dodecylsulfate Using a Dodecylsulfate-Selective Plasticized Poly(Vinyl Chloride) Membrane Electrode Detector" Journal of Flow Injection Analysis. 15. 242-247 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 今任稔彦: "「化学入門」 第3章 物質の変化" 共立出版, 40 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 正留 隆: "「機器分析の基礎」 13章 電気化学分析" 裳華房, 25 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sadayuki Koizumi: "Effect of concentrations of triphenyltin chloride and anion exchanger on anion selectivity of plasticized PVC membrane electrode" Fresenius'Journal of Analytical Chemistry. 357. 37-43 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takashi Masadome: "Flow injection determination of anionic polyelectrolytes using an anionic surfactant-selective plasticized poly(vinyl chloride) membrane electrode detector" Fresenius'Journal of Analytical Chemistry. 357. 901-903 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takashi Masadome: "Potentiometric titration of anionic polyelectrolytes using a cationic surfactant solution as a titrant and a titrant-sensitive plasticized poly(vinyl chloride) membrane electrode" Fresenius'Journal of Analytical Chemistry. 358. 538-540 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takashi Masadome: "Sensitive end-point detection for potentiometric titration of cationic polyelectrolytes using maker cation-selective electrode" Analytical Communications. 34. 257-259 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Sadayuki Koizumi: "Bi-ionic mambrane potential across a liquid anion-exchange membrane containinig triphenyltin chloride" Journal of Membrane Science. 133. 149-158 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Eva M.Kocsis: "Separation Bihavior of Anions on ODS Modified with Phthalocyanine Cobalt(III) complex" Analytical Sciences supplement. 13. 195-198 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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