Sensitivity enhancement of PVC membrane based perrhenate ion-selective electrode by attaching anionic polyelectrolyte solution layer

Toshihiko Imato, Yuko Nakamura

Research output: Contribution to journalArticle

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Abstract

A perrhenate ion-selective electrode based on a plasticized poly(vinyl chloride) membrane containing an ion-pair of perrhenate ion with a hydrophobia quaternary ammonium ion was fabricated and its performance was examined with respect to sensitivity mainly. The electrode using tridodecylhexadecylammonium and 2-nitrophenyl octyl ether as the ion exchanger and the plasticizer, respectively, was found to show a best performance with a lower detection limit of 2.0 × 10-7 M (M = mol dm-3) of perrhenate ion. Another electrode with a preconcentration function was newly constructed by attaching an aqueous solution layer of an anionic polyelectrolyte, poly(diallyldimethylammonium) chloride on the surface of the electrode membrane by use of a dialysis membrane. The lower detection limit of the newly constructed electrode was much improved by about two orders of magnitude. The response time of the electrode was about 6-10 min, and it was longer than that of the electrode without the polyelectrolyte solution layer.

Original languageEnglish
Pages (from-to)1334-1340
Number of pages7
JournalDenki Kagaku
Volume64
Issue number12
Publication statusPublished - Dec 1 1996

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Polyelectrolytes
Polyvinyl Chloride
Polyvinyl chlorides
Membranes
Electrodes
Ions
Dialysis membranes
Vinyl Chloride
Plasticizers
Ion exchangers
Ammonium Compounds
Ion-Selective Electrodes
perrhenate
Ethers

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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Sensitivity enhancement of PVC membrane based perrhenate ion-selective electrode by attaching anionic polyelectrolyte solution layer. / Imato, Toshihiko; Nakamura, Yuko.

In: Denki Kagaku, Vol. 64, No. 12, 01.12.1996, p. 1334-1340.

Research output: Contribution to journalArticle

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