Copper-deposited wire ion-selective electrode for the determination of copper(II)

Abstract

A wire ion-selective electrode was made by sulphiding electrolytic copper previously deposited on commercial copper wire. Sulphidation was carried out by means of gaseous hydrogen sulphide at an increased temperature. The electrode not only possesses good properties but it can also be coupled with an SCE to determine copper in potentiometric titrations with different complexing agents in both aqueous and non-aqueous solutions.