Liquid-membrane electrode sensitive to ammonia and aliphatic amines based on 1-[(2-oxyphenyl)iminomethyl]-2-oxybenzene-O,O′, N-ammin-nickel(II) complex

Basgut O., Durmus Z., Atakol O., Kilic E.

Talanta, cilt.57, sa.4, ss.813-817, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 4
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0039-9140(02)00099-1
  • Dergi Adı: Talanta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.813-817
  • Anahtar Kelimeler: ammonia, aliphatic amines, liquid membrane electrode, Schiff base, ION-SELECTIVE ELECTRODES, UREA
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, an ammonia-gas-sensing liquid-state membrane electrode based on 1-[(2-oxyphenyl)iminomethyl]-2- oxybenzene-O,O′,N-ammin-nickel(II) (Ni(II)-Schiff base) as an ionophore was developed. This membrane electrode gave a very good performance and exhibited linear response with near-Nernstian slope of 50.7 ± 0.5 mV per decade, within a concentration range of 1.0 × 10-1-1.0 × 10-3 M. The electrode performance depends on the pH of the test solution and the optimum pH range was 10.0-11.5. The effect of concentration of internal solutions in the electrode was also investigated. The selectivity properties of the electrode towards aliphatic amines at a pH value of 10.2 were investigated with the mixed-solution method. Furthermore, the response time and lifetime of the electrode prepared were determined. © 2002 Published by Elsevier Science B.V.