Organic tin compounds combined with anionic additives - An ionophore system leading to a phosphate ion-selective electrode?

S. Sasaki, S. Ozawa, Daniel Citterio, K. Yamada, K. Suzuki

Research output: Contribution to journal › Article

22 Citations (Scopus)

Abstract

The potentiometric response characteristics of electrodes based on organic trialkyl/aryl-tin compounds combined with various amounts of anionic additive (NaTFPB) were investigated in 0.1M bis-Tris-H2SO4 buffer solution at pH 7.0. The best result for phosphate sensing was obtained for the electrode membrane containing tributyltin chloride and 25mol% NaTFPB, where the electrode exhibits high selectivity towards phosphate anions with a slope of -60mV per decade. It was demonstrated that the interference from more lipophilic anions is drastically suppressed (logKij pot, i=H 2PO4 -: salicylate, 0.5; SCN-, -0.8; ClO4 -, -2.3) under this optimized measurement conditions.

Original languageEnglish
Pages (from-to)131-134
Number of pages4
JournalTalanta
Volume63
Issue number1
DOIs
Publication statusPublished - 2004 May 10

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Tin Compounds
Ion-Selective Electrodes
Ionophores
Electrodes
Phosphates
Anions
Tromethamine
Salicylates
Buffers
Membranes

Keywords

  • Ion-selective electrode
  • Organic tin
  • Phosphate
  • Sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Organic tin compounds combined with anionic additives - An ionophore system leading to a phosphate ion-selective electrode? / Sasaki, S.; Ozawa, S.; Citterio, Daniel; Yamada, K.; Suzuki, K.

In: Talanta, Vol. 63, No. 1, 10.05.2004, p. 131-134.

Research output: Contribution to journal › Article

Sasaki, S, Ozawa, S, Citterio, D, Yamada, K & Suzuki, K 2004, 'Organic tin compounds combined with anionic additives - An ionophore system leading to a phosphate ion-selective electrode?', Talanta, vol. 63, no. 1, pp. 131-134. https://doi.org/10.1016/j.talanta.2003.12.034
Sasaki S, Ozawa S, Citterio D, Yamada K, Suzuki K. Organic tin compounds combined with anionic additives - An ionophore system leading to a phosphate ion-selective electrode? Talanta. 2004 May 10;63(1):131-134. https://doi.org/10.1016/j.talanta.2003.12.034
Sasaki, S. ; Ozawa, S. ; Citterio, Daniel ; Yamada, K. ; Suzuki, K. / Organic tin compounds combined with anionic additives - An ionophore system leading to a phosphate ion-selective electrode?. In: Talanta. 2004 ; Vol. 63, No. 1. pp. 131-134.
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