A solid-state hydroxide ion selective electrode for the measurement of high pH values

Ekmekci G., Kalayci Ş., Somer G.

SENSORS AND ACTUATORS B-CHEMICAL, cilt.101, ss.260-264, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 101
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.snb.2004.03.012
  • Dergi Adı: SENSORS AND ACTUATORS B-CHEMICAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.260-264
  • Gazi Üniversitesi Adresli: Evet

Özet

A solid-state ion selective electrode, which is sensitive to hydroxide ion concentration has been prepared. This electrode with a 10% Cu2S and 90% Ag2Se composition exhibited an analytically useful potential change from 10(-6) to 10(-1) M hydroxide ion, pH 8-13. The slope of linear portion is about 58 mV per decade change in hydroxide concentration. There was no interference of K+, Na+, Ca2+, Zn2+ and Mg2+ cations and Cl-, NO3- and SO42- anions. The response time was 30 s and the lifetime was about 2 years. (C) 2004 Elsevier B.V. All rights reserved.