Title of article :
Iodide selective membrane electrode based on copper (Π)-bis-Nphenilsalicyldenaminato complex
Author/Authors :
Benvidi, Ali Department of Chemistry - Faculty of Science - Yazd University , Elahizadeh, Mehdi Department of Chemistry - Faculty of Science - Yazd University , Zare, Hamid Reza Department of Chemistry - Faculty of Science - Yazd University , Vafazadeh, Rasoul Department of Chemistry - Faculty of Science - Yazd University
Abstract :
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.
Keywords :
Potentiometry , Iodide ion-selective electrode , PVC membrane , copper(Π)-bis-Nphenilsalicyldenaminato complex
Journal title :
Astroparticle Physics
