Ion-selective optodes: Current developments and future prospects

Hideaki Hisamoto, Koji Suzuki

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


The chemistry of the ion-selective optode has recently been recognized as a highly selective ion-sensing methodology which involves a highly selective complexation between an ionophore and a primary ion. This simple methodology allowed the construction of several kinds of ion-sensing devices which enabled highly selective ion determination for analytical purposes. In this review, sensing devices are divided into the following four types with different analytical uses: (1) flow analytical devices (flow-through optode); (2) waveguide devices (waveguide optode); (3) sensing plate devices (sensing plate optode, film optode); (4) fiber-optic devices (fiber optode). The characteristics of each device are explained and discussed with experimental data, and the future prospects for ion-selective optode methodology are described. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)513-524
Number of pages12
JournalTrAC - Trends in Analytical Chemistry
Issue number8
Publication statusPublished - 1999 Aug
Externally publishedYes


  • Active waveguide
  • Fiber-optic sensor
  • Ion-selective optode
  • Neutral ionophore
  • Sensing film
  • Sensors

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy


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