Additive-salt effect on low detection limit and slope sensitivity in response of potassium- and sodium-selective neutral carrier based electrodes and their liquid-membrane based ion-sensitive field-effect transistor

Shin Ichi Wakida, Takashi Masadome, Toshihiko Imato, Yasuhiko Shibutani, Kenji Yakabe, Toshiyuki Shono, Yasukazu Asano

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The remarkable effect of additive salts on low detection limits as weir as slope sensitivities were observed for the response characteristics of bis(crown) and valinomycin based poly(vinyl chloride) (PVC) membrane electrodes. The low detection limits and the slope sensitivities for bis(crown) and valinomycin based PVC membrane electrodes were improved apparently as the hydrophobicity of the additive salts increases. In order to clarify the effect of additive salts of the PVC membrane electrodes, the response characteristics of liquid-membrane, based K+ and Na+-ISEs, which were fabricated by using micro-ion-sensitive field-effect transistors (μ- ISFETs), were evaluated. The low detection limits and the slope sensitivities in the responses of the neutral-carrier based K+ and Na+-μ-ISFETs also changed remarkably with the kind as well as the ConcentratiOn of the additive salts.

Original languageEnglish
Pages (from-to)47-51
Number of pages5
JournalAnalytical Sciences
Volume15
Issue number1
Publication statusPublished - 1999 Jan
Externally publishedYes

Fingerprint

Ion sensitive field effect transistors
Liquid membranes
Potassium
Salts
Sodium
Polyvinyl Chloride
Valinomycin
Electrodes
Membranes
Vinyl Chloride
Hydrophobicity

Keywords

  • Additive salts
  • Ion-selective electrode
  • Liquid membrane
  • Neutral carrier
  • Potassium and sodium ion-sensitive field-effect transistor
  • Response behavior

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Additive-salt effect on low detection limit and slope sensitivity in response of potassium- and sodium-selective neutral carrier based electrodes and their liquid-membrane based ion-sensitive field-effect transistor. / Wakida, Shin Ichi; Masadome, Takashi; Imato, Toshihiko; Shibutani, Yasuhiko; Yakabe, Kenji; Shono, Toshiyuki; Asano, Yasukazu.

In: Analytical Sciences, Vol. 15, No. 1, 01.1999, p. 47-51.

Research output: Contribution to journalArticle

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AU - Imato, Toshihiko

AU - Shibutani, Yasuhiko

AU - Yakabe, Kenji

AU - Shono, Toshiyuki

AU - Asano, Yasukazu

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AB - The remarkable effect of additive salts on low detection limits as weir as slope sensitivities were observed for the response characteristics of bis(crown) and valinomycin based poly(vinyl chloride) (PVC) membrane electrodes. The low detection limits and the slope sensitivities for bis(crown) and valinomycin based PVC membrane electrodes were improved apparently as the hydrophobicity of the additive salts increases. In order to clarify the effect of additive salts of the PVC membrane electrodes, the response characteristics of liquid-membrane, based K+ and Na+-ISEs, which were fabricated by using micro-ion-sensitive field-effect transistors (μ- ISFETs), were evaluated. The low detection limits and the slope sensitivities in the responses of the neutral-carrier based K+ and Na+-μ-ISFETs also changed remarkably with the kind as well as the ConcentratiOn of the additive salts.

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