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Development of ion sensors for severe environmental and biological media

Research Project

Project/Area Number 60850142
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 工業分析化学
Research InstitutionKyushu University

Principal Investigator

ISHIBASHI Nobuhiko  Kyushu University, Department of Engineering, Professor, 工学部, 教授 (00037673)

Co-Investigator(Kenkyū-buntansha) KAWABATA Yuji  Kyushu University, Department of Engineering, Research Associate, 工学部, 助手 (70152999)
IMATO Toshihiko  Kyushu University, Department of Engineering, Research Associate, 工学部, 助手 (50117066)
Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1986: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1985: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsIon-Selective Electrode / Optical Fiber Sensor / Optrode / biological media / severe enviromental media / 非水溶媒 / オブトロード / イオンセンサー / レーザー / 光ファイバー / オプトロード / イオン選択性電極 / イオン交換樹脂膜
Research Abstract

Development of new ion sensors is very important especially for continuous analysis in severe environmental and biological media. A fiber-optic chemical sensor is an attractive detector for bioanalysis in physiological circumstance, but the sensor developed so far has disadvantage in its slow response. In this study, we developed a new type of pH sensor, in which the fluorescent pH indicator was covalently immobilized in a state of monolayer on the end surface of the optical fiber. Transmission of exciting laser beam and collection of fluorescence were conducted through a single optical fiber. We investigated the response time of the sensor and evaluated the sensor performance in high-pressure and high-temperature condition. The constructed sensor has the response time of 9 s and it was determined by a time constant of the signal detector. The intrinsic response time of the immobilized indicator is less than 10 ms. The error in the pH measurement was <-!+> 0.1 and the sensitivity of the sensor was constant in 0-200 kg/ <cm^2> and room temperature-80 C condition.
Cation-sensitive electrodes based on plasticized poly(vinyl chloride) membrane containing tetrakis[3,5-bis(trifluoromethyl)phenyl] borate (TFPB) were developed for measurements in acidic solution, alcoholic aqueous solution media and in high temperature circumstance. TFPB has high lipophilicty and stability against acid. This type of electrode, for example, the sodium ion-selective electrode was found to be capable for use in about 30% ethanolic aqueous solution. The ion-selective electrode detector was developed for separate determination of drugs by reverse phase high-performance liquid chromatography. The performance of the detector was evaluated by detection of naphazoline and neostigmine. The electrode was capable for determination of the potassium ion in strong acid and aqueous solution sample at 70 C.

Report

(2 results)
  • 1986 Final Research Report Summary
  • 1985 Annual Research Report
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] N.Ishibashi;T.Masadome;T.Imato: Analytical Sciences. 2. 487-488 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Y.Kawabata;T.Imasaka;N.Ishibashi: Talanta. 33. 281-283 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Y.Kawabata;K.Tsuchida;T.Imasaka;N.Ishibashi: Analytical Sciences. 3. 7-9 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] 石橋信彦,清山哲郎 監修: "化学センサ実用便覧 第1章イオン電極センサ 第3章化学センサの特徴と使用法" フジ・テクノシステム, 27 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] N.Ishibashi, T.Masadome and T.Imato: "Surfactant-selective electrode based on poly (vinyl chloride) membrane plasticized with o-nitrophenyl octyl ether" Analytical Sciences. 2. 487-488 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Y.Kawabata, T.Imasaka and N.Ishibashi: "Ultramicro flow-cell using optical fiber for semiconductor laser fluorimetry" Talanta. 33. 281-283 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Y.Kawabata, K.Tsuchida, T.Imasaka and N.Ishibashi: "Fiber optic pH sensor with monolayer indicator" Analytical Sciences. 3. 7-9 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Nobuhiko Ishibashi: Fuji Techno System. Kagaku Sensor Jitsuyo Binran, (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1986 Final Research Report Summary
  • [Publications] Ion-Selective Electrode 4.Academiai Kiado.Budapest. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] Analytica Chimica Aota. 169. (1985)

    • Related Report
      1985 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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