Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye

Dwi Siswanta, Hideaki Hisamoto, Sayaka Sato, Yukihiro Matsumoto, Yasuhiro Koike, Shinji Yamamori, Koji Suzuki

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To whom correspondence should be addressed D.S. On leave from Department of Chemistry, Gadjah Mada University, Sekip Utara, Jogjakarta, Indonesia Flow-through type magnesium ion-selective optodes based on a neutral ionophore and a lipophilic cationic dye have been developed. The optodes were prepared by coating pellicular octadecylsilica beads with a lipophilic organic liquid containing magnesium ionophores, a lipophilic cationic dye and a lipophilic anionic additive, and packing the beads into a flow-through optical cell. Two neutral magnesium ionophores (K22B5 and K22B1B5) and two novel lipophilic cationic dyes (KDC-1 and K DC-2) were synthesized and tested for preparing the optodes. Among the developed optodes, an optode based on the ionophore K22B1B5 and a cationic dye (KDC-2) produced the best magnesium ion optode with a relatively high Mg2+ sensitivity and selectivity, This optode showed a fast and reproducible response to magnesium ion, even in a high concentration of background ions.

Original languageEnglish
Pages (from-to)429-435
Number of pages7
JournalAnalytical Sciences
Volume13
Issue number3
Publication statusPublished - 1997

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Ionophores
Magnesium
Coloring Agents
Ions
Coatings
Liquids

Keywords

  • Cationic dye
  • Magnesium ion
  • Neutral ionophore
  • Optode

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Siswanta, D., Hisamoto, H., Sato, S., Matsumoto, Y., Koike, Y., Yamamori, S., & Suzuki, K. (1997). Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye. Analytical Sciences, 13(3), 429-435.

Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye. / Siswanta, Dwi; Hisamoto, Hideaki; Sato, Sayaka; Matsumoto, Yukihiro; Koike, Yasuhiro; Yamamori, Shinji; Suzuki, Koji.

In: Analytical Sciences, Vol. 13, No. 3, 1997, p. 429-435.

Research output: Contribution to journalArticle

Siswanta, D, Hisamoto, H, Sato, S, Matsumoto, Y, Koike, Y, Yamamori, S & Suzuki, K 1997, 'Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye', Analytical Sciences, vol. 13, no. 3, pp. 429-435.
Siswanta D, Hisamoto H, Sato S, Matsumoto Y, Koike Y, Yamamori S et al. Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye. Analytical Sciences. 1997;13(3):429-435.
Siswanta, Dwi ; Hisamoto, Hideaki ; Sato, Sayaka ; Matsumoto, Yukihiro ; Koike, Yasuhiro ; Yamamori, Shinji ; Suzuki, Koji. / Magnesium Ion-Selective Optodes Based on a Neutral Ionophore and a Lipophilic Cationic Dye. In: Analytical Sciences. 1997 ; Vol. 13, No. 3. pp. 429-435.
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AB - To whom correspondence should be addressed D.S. On leave from Department of Chemistry, Gadjah Mada University, Sekip Utara, Jogjakarta, Indonesia Flow-through type magnesium ion-selective optodes based on a neutral ionophore and a lipophilic cationic dye have been developed. The optodes were prepared by coating pellicular octadecylsilica beads with a lipophilic organic liquid containing magnesium ionophores, a lipophilic cationic dye and a lipophilic anionic additive, and packing the beads into a flow-through optical cell. Two neutral magnesium ionophores (K22B5 and K22B1B5) and two novel lipophilic cationic dyes (KDC-1 and K DC-2) were synthesized and tested for preparing the optodes. Among the developed optodes, an optode based on the ionophore K22B1B5 and a cationic dye (KDC-2) produced the best magnesium ion optode with a relatively high Mg2+ sensitivity and selectivity, This optode showed a fast and reproducible response to magnesium ion, even in a high concentration of background ions.

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