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http://dx.doi.org/10.5012/bkcs.2006.27.8.1127

Determination of Salicylate by Selective Poly(vinylchloride) Membrane Electrode Based on N,N'-1,4-Butylene Bis(3-methyl salicylidene iminato) Copper(II)  

Mazloum Ardakani, M. (Department of Chemistry, Faculty of Science, Yazd University)
Jamshidpoor, M. (Department of Chemistry, Faculty of Science, Kashan University)
Naeimi, H. (Department of Chemistry, Faculty of Science, Kashan University)
Heidarnezhad, A. (Department of Chemistry, Faculty of Science, Kashan University)
Publication Information
Abstract
A new salicylate-selective electrode based on the complex N,N'-1,4-butylene bis(3-methyl salicylidene iminato) copper(II) as the membrane carrier was developed. The electrode exhibits a good Nernstian slope of 59.1 ${\pm}$ 1.0 mV/decade and a linear range of $1.0\;{\times}\;10^{-6}$-1.0 M for salicylate. The limit of detection was $5.0\;{\times}\;10^{-7}$ M. It has a fast response time 10 s and can be used for more than three months. The selective coefficients were determined by the fixed interference method (FIM) and could be used in the pH range 4.5-10.5. It was employed as an indicator electrode for direct determination of salicylate in pharmaceutical samples.
Keywords
Salicylate; Salicylate-selective electrode; Potentiometry; Ionophore;
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