Silver Ion Selective Optodes Based on Novel Thia Ether Compounds

Hideaki Hisamoto, Eriko Nakagawa, Kazuhisa Nagatsuka, Yoko Abe, Sayaka Sato, Dwi Siswanta, Koji Suzuki

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Flow-through type fiber-optic silver ion selective optodes based on novel cyclic and noncyclic thia crown ether compounds and a lipophilic anionic indicator dye have been developed. Pellicular octadecylsilica beads were coated with a lipophilic organic liquid containing the thia ether compound as the silver ion selective ionophore and LAD-3 as the color changeable indicator dye. The optode system was constructed by packing these color changeable ion sensing beads in a flow-through optical cell (cell volume, 7 μL) having a quartz window attached directly to the distal end of a bifurcated optical fiber. The optode based on a lipophilic thia crown ether that has two sulfur atoms (tetradecyl-14-dithiacrown-4) exhibited the most sensitive response to silver ion of all the optodes investigated. This optode could detect silver ion in concentrations ranging from 10-6 to 10-2 M at pH 7.0 with 0.05 M Tris-H2SO4 buffer as the flowing solution by measuring the absorbance change in the sensing beads at 516 nm. This optode showed a highly selective response to Ag+ without any interference from other transition metal ions, except for Hg2+, up to 10-3 M, as well as alkali metal and alkaline earth metal ions up to 1 M. Optodes employing highly lipophilic ionophores showed good reproducible response to Ag+ for at least 2 weeks.

Original languageEnglish
Pages (from-to)1315-1321
Number of pages7
JournalAnalytical Chemistry
Volume67
Issue number8
Publication statusPublished - 1995 Apr 15

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Silver
Ether
Ions
Crown Ethers
Ionophores
Metal ions
Coloring Agents
Alkaline Earth Metals
Alkali Metals
Color
Quartz
Sulfur
Fiber optics
Transition metals
Optical fibers
Buffers
Atoms
Liquids

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Hisamoto, H., Nakagawa, E., Nagatsuka, K., Abe, Y., Sato, S., Siswanta, D., & Suzuki, K. (1995). Silver Ion Selective Optodes Based on Novel Thia Ether Compounds. Analytical Chemistry, 67(8), 1315-1321.

Silver Ion Selective Optodes Based on Novel Thia Ether Compounds. / Hisamoto, Hideaki; Nakagawa, Eriko; Nagatsuka, Kazuhisa; Abe, Yoko; Sato, Sayaka; Siswanta, Dwi; Suzuki, Koji.

In: Analytical Chemistry, Vol. 67, No. 8, 15.04.1995, p. 1315-1321.

Research output: Contribution to journalArticle

Hisamoto, H, Nakagawa, E, Nagatsuka, K, Abe, Y, Sato, S, Siswanta, D & Suzuki, K 1995, 'Silver Ion Selective Optodes Based on Novel Thia Ether Compounds', Analytical Chemistry, vol. 67, no. 8, pp. 1315-1321.
Hisamoto H, Nakagawa E, Nagatsuka K, Abe Y, Sato S, Siswanta D et al. Silver Ion Selective Optodes Based on Novel Thia Ether Compounds. Analytical Chemistry. 1995 Apr 15;67(8):1315-1321.
Hisamoto, Hideaki ; Nakagawa, Eriko ; Nagatsuka, Kazuhisa ; Abe, Yoko ; Sato, Sayaka ; Siswanta, Dwi ; Suzuki, Koji. / Silver Ion Selective Optodes Based on Novel Thia Ether Compounds. In: Analytical Chemistry. 1995 ; Vol. 67, No. 8. pp. 1315-1321.
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