Fiber-optic potassium ion sensor based on a novel color-changing crown ether dye

Kyota Miyazaki, Koji Tohda, Hiroyuki Ohzora, Kazuhiko Watanabe, Hidenari Inoue, Koji Suzuki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A novel color-changing anionic crown ether dye, 4'-[2″,4″-di-(2,4-dinitro-6-trifluoromethylphenylamino)-6″-trifluoromethylphenyl]aminobenzo-15-crown-5 (chromogenic aminobenzo-15-crown-5, CAB15C5), was synthesized and applied to a new photochemical material K+ sensor. The photochemical K+-sensor probe was prepared using the CAB15C5-based poly (vinyl chloride) matrix-membrane set 1 mm apart from the tip of a bifurcated optical fiber with a cylindrical plastic support. This sensor could detect a wide range of K+ concentration (10-6~10-1 M) at pH 10 by measuring the absorbance change at 520 nm with approximately 1000 times selectivity against Na+. The theory of the photochemical K+-sensor was discussed on the basis of the cation extraction mechanism using the color-changing crown ether dye (GAB15C5).

Original languageEnglish
Pages (from-to)717-722
Number of pages6
JournalBunseki Kagaku
Volume39
Issue number11
DOIs
Publication statusPublished - 1990

Fingerprint

Crown Ethers
Fiber optics
Potassium
Coloring Agents
Chromogenics
Ions
Color
Sensors
Vinyl Chloride
Cations
Optical fibers
Plastics
Membranes
15-crown-5

Keywords

  • crown ether dye
  • fiber-optic potassium ion sensor
  • photochemical ion sensor probe

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Miyazaki, K., Tohda, K., Ohzora, H., Watanabe, K., Inoue, H., & Suzuki, K. (1990). Fiber-optic potassium ion sensor based on a novel color-changing crown ether dye. Bunseki Kagaku, 39(11), 717-722. https://doi.org/10.2116/bunsekikagaku.39.11_717

Fiber-optic potassium ion sensor based on a novel color-changing crown ether dye. / Miyazaki, Kyota; Tohda, Koji; Ohzora, Hiroyuki; Watanabe, Kazuhiko; Inoue, Hidenari; Suzuki, Koji.

In: Bunseki Kagaku, Vol. 39, No. 11, 1990, p. 717-722.

Research output: Contribution to journalArticle

Miyazaki, K, Tohda, K, Ohzora, H, Watanabe, K, Inoue, H & Suzuki, K 1990, 'Fiber-optic potassium ion sensor based on a novel color-changing crown ether dye', Bunseki Kagaku, vol. 39, no. 11, pp. 717-722. https://doi.org/10.2116/bunsekikagaku.39.11_717
Miyazaki, Kyota ; Tohda, Koji ; Ohzora, Hiroyuki ; Watanabe, Kazuhiko ; Inoue, Hidenari ; Suzuki, Koji. / Fiber-optic potassium ion sensor based on a novel color-changing crown ether dye. In: Bunseki Kagaku. 1990 ; Vol. 39, No. 11. pp. 717-722.
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