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Ag+-selective poly(vinyl chloride) membrane electrode based on [N,N′ - ethylenebis-(3-methoxy salicylaldimine)]  
Yazarlar
C. Topcu
Ondokuz Mayis Üniversitesi, Turkey
F. Coldur
Ondokuz Mayis Üniversitesi, Turkey
M. Andac
Ondokuz Mayis Üniversitesi, Turkey
I. Isildak
Ondokuz Mayis Üniversitesi, Turkey
Öğr. Gör. Nuray ÖZTÜRK Öğr. Gör. Nuray ÖZTÜRK
Kırşehir Ahi Evran Üniversitesi, Türkiye
H. Bati
Ondokuz Mayis Üniversitesi, Turkey
Özet
A solid state silver selective poly (vinyl chloride) (PVC) membrane electrode was developed by using recently synthesized [N, N′-ethylenebis-(3-methoxy salicylaldimine)] as an active component of the membrane. The best sensitivity and selectivity for Ag+ ions were obtained for the electrode membrane containing ionophore-NPOE-PVC and KTpClTB in composition of 4:62:33:1 (w/w). The proposed electrode had a Nernstian response (56.0 mV/decade) to Ag+ within the concentration range 1.0 x10-6 to 1.0x10-1 mol L-1and with a detection limit of 8.3x10-7 mol L-1. The electrode worked well between pH 3.0 and 8.0 and had a fast response time of 15 s. The electrode was used along 3 months without any significant change in its sensitivity. Potentiometric performance of the electrode in partially non-aqueous medium (up to 10% (v/v) alcohol) was found satisfactory. The electrode was successfully used in the potentiometric titration of silver ions with standard solution of potassium iodide, and in the direct determination of silver ion in spiked waste water and photographic film developing solutions. © 2011 Bentham Science Publishers Ltd.
Anahtar Kelimeler
Poly (vinyl chloride) membrane | Schiff base and potentiometric sensors | Silver selective electrode
Makale Türü Özgün Makale
Makale Alt Türü SCOPUS dergilerinde yayımlanan tam makale
Dergi Adı Current Analytical Chemistry
Dergi ISSN 1573-4110
Makale Dili İngilizce
Basım Tarihi 03-2011
Cilt No 7
Sayı 2
Sayfalar 136 / 145
Doi Numarası 10.2174/157341111794814995