Flow injection analysis of potassium using an all-solid-state potassium-selective electrode as a detector

Shinichi Komaba, Junko Arakawa, Michiko Seyama, Tetsuya Osaka, Ikuo Satoh, Sadako Nakamura

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The concentration of potassium was determined by a combination of flow injection analysis (FIA) with an all-solid-state potassium sensor detection. The all-solid-state potassium-selective electrode possessing long-term potential stability was fabricated by coating an electroactive polypyrrole/poly(4-styrenesulfonate) film electrode with a plasticized poly(vinyl chloride) membrane containing valinomycin. The simple FIA system developed in this laboratory demonstrated sensitivity identical to that in the batch system and achieved considerably rapid assay (150 samples h -1). Analyses of soy sauce and control serum samples by this FIA system yielded results in good agreement with those obtained by conventional measurements.

Original languageEnglish
Pages (from-to)1293-1297
Number of pages5
JournalTalanta
Volume46
Issue number6
DOIs
Publication statusPublished - 1998 Aug

Fingerprint

Flow Injection Analysis
Potassium
Electrodes
Detectors
Vinyl Chloride
Soy Foods
Valinomycin
Assays
Membranes
Coatings
Sensors
Serum

Keywords

  • Flow injection analysis
  • Ion selective electrode
  • Potassium

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Flow injection analysis of potassium using an all-solid-state potassium-selective electrode as a detector. / Komaba, Shinichi; Arakawa, Junko; Seyama, Michiko; Osaka, Tetsuya; Satoh, Ikuo; Nakamura, Sadako.

In: Talanta, Vol. 46, No. 6, 08.1998, p. 1293-1297.

Research output: Contribution to journalArticle

Komaba, Shinichi ; Arakawa, Junko ; Seyama, Michiko ; Osaka, Tetsuya ; Satoh, Ikuo ; Nakamura, Sadako. / Flow injection analysis of potassium using an all-solid-state potassium-selective electrode as a detector. In: Talanta. 1998 ; Vol. 46, No. 6. pp. 1293-1297.
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