A New Phosphate Selective Electrode and Its Application in Some Foods

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Kalaycı Ş.

International Journal Of Electrochemical Science, vol.16, pp.1-10, 2021 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 16
  • Publication Date: 2021
  • Journal Name: International Journal Of Electrochemical Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1-10
  • Gazi University Affiliated: Yes


A highly sensitive phosphate selective electrode (ISE) was fabricated using Ba3PO4, Cu2S and Ag2S solids. The highest sensitivity of ISE was obtained with 20% Ba3PO4 (m/m) composition. The ISE shows a slope of about 57 mV towards the phosphate ion in the concentration range 1x10-1 M - 1x10-6 M. The ISE characterization was performed. The ISE was judged to be accurate in the presence of possible interfering ions. The amount of phosphate in foods was measured as real sample analysis and the proposed ISE was accepted as a reliable, sensitive and easy-to-make sensor device for phosphate analysis in food samples.