Construction and characteristics of polymer-membrane electrode for sulfate using epoxy matrix

Hitoshi Ishiwada, Koji Suzuki, Kenji Kimura, Tsuneo Shirai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Miniaturized polymer-membrane electrodes (PMEs) for sulfate were constructed by the use of epoxy resin matrix as a material of electrode membrane. The PME, which has the best characteristics among all constructed PMEs, consists of a silver paste coated copper wire as a center substrate and the coating layers of barium sulfate and epoxy matrix incorporating 45 wt% ion exchanger solution of nitrobenzene containing 10 - 2 M tris- (1,10-phenanthroline) -iron (II) sulfate. The coating layers were formed on the substrate according to the order above with the thickness of (0.2~0.3) mm at each layer, so that the electrode was moulded in stick shape having about 1 mm outer diameter. The response of the PME were Nernstian for (5X 10-5~1.5x 10-2)M activities of sulfate. The noise of the PME on electrode potential was within db 0.5 mV. The allowable concentration for inorganic monovalent anions as interferences, which give rise to 10% of error (= 3mV) on response potential, was(5.6X lO-5~1.05x 103)M when the sample contained 1.0x10-3M sulfate.

Original languageEnglish
Pages (from-to)346-349
Number of pages4
JournalBunseki Kagaku
Volume31
Issue number6
DOIs
Publication statusPublished - 1982

Fingerprint

Polymer membrane electrodes
Sulfates
Electrodes
Barium Sulfate
Epoxy Resins
Coatings
Ion exchangers
Substrates
Ointments
Silver
Anions
Copper
Wire
Membranes

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Construction and characteristics of polymer-membrane electrode for sulfate using epoxy matrix. / Ishiwada, Hitoshi; Suzuki, Koji; Kimura, Kenji; Shirai, Tsuneo.

In: Bunseki Kagaku, Vol. 31, No. 6, 1982, p. 346-349.

Research output: Contribution to journalArticle

Ishiwada, Hitoshi ; Suzuki, Koji ; Kimura, Kenji ; Shirai, Tsuneo. / Construction and characteristics of polymer-membrane electrode for sulfate using epoxy matrix. In: Bunseki Kagaku. 1982 ; Vol. 31, No. 6. pp. 346-349.
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