A new modified Fe(III)-selective solid membrane electrode

Duzgun E., TAŞTEKİN M., ATAKOL O.

REVIEWS IN ANALYTICAL CHEMISTRY, cilt.27, sa.2, ss.83-90, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 2
  • Basım Tarihi: 2008
  • Dergi Adı: REVIEWS IN ANALYTICAL CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.83-90
  • Anahtar Kelimeler: iron(III), sulfur based membrane, ion-selective electrode, potentiometry, ION-SELECTIVE ELECTRODES, BULK OPTODES, IONOPHORES, IRON(III), SENSORS
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, a Fe(III)-selective solid state membrane electrode based on AgFeS2-FeS, (x=2-3) mixture was developed. This electrode exhibited a linear Nernstian response over the range 1 0,2_ 10,5 M of iron(III) with a slope of 18.7 0.8 mV per p[Fe]. The effects of the pH and the lifetime of the electrode were investigated. The selectivity coefficients for some common cations were calculated by the mixed-solution method. The preparation procedure of the electrode is easy and inexpensive. Moreover, the proposed electrode was applied for the determination of iron in standard reference materials.