Iodide selective membrane electrode based on copper (Π)-bis-Nphenilsalicyldenaminato complex

Journal of the Iranian Chemical Research

مقاله 4، دوره 1، شماره 2، اسفند 2008، صفحه 103-111   

نویسندگان

Ali Benvidi^* ؛ Mehdi Elahizadeh؛ Hamid Reza Zare,؛ Rasoul Vafazadeh

Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran

چکیده

An iodide ion-selective PVC membrane sensor based on copper (Π)-bis-Nphenilsalicyldenaminato
complex as a novel sensing material is successfully developed. The
electrode showed a good selectivity for iodide ion with respect to common inorganic anions. The
sensor exhibited a good linear response with slope of _58.6 ± 0.4 mV per decade over the
concentration range of 5.0 × 10-6 to 1.0 × 10-1 mol L-1, and a detection limit of 3.0 × 10-6 mol L-1
of I– ion. The electrode response was independent of pH in the range of 3.0 - 10.0. The proposed
sensor was applied as an indicator electrode in potentiometric titration of I– with Ag+ ion, and to
determine the iodide in sodium chloride salt.

کلیدواژه‌ها

Potentiometry؛ Iodide ion-selective electrode؛ PVC membrane؛ copper(Π)-bis-Nphenilsalicyldenaminato complex

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Recovery
%
proposed sensor
Spectrophotometric
Sample Method
POVIDONE 7.87 × 10-4 M 7.72 × 10-4 M 98.1
A. Benvidi et al. / J. Iran. Chem. Res. 1 (2008) 103-111
111
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