%0 Journal Article
%T A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore
%A Mihaela Dana Tutulea-Anastasiu
%A Deivy Wilson
%A Manel del Valle
%A Cristina Mihaela Schreiner
%A Igor Cretescu
%J Sensors
%D 2013
%I MDPI AG
%R 10.3390/s130404367
%X All-solid-state sensors with polyvinyl chloride (PVC)-based membranes using off-the-shelf N-hydroxysuccinimide (NHS) and succinimide (Succ) ionophores were prepared using DOP (dioctyl phthalate) and NPOE ( ortho-nitrophenyloctyl ether) as plasticizers. Good responses were obtained when NHS was used. The potentiometric response of the proposed electrode is independent of pH over the range 2¨C6. The electrode shows a fast response time of 0.25 s. The electrode exhibits a Super-Nernstian response, with 37.5 mV/decade, with a potentiometric detection limit of 4.4 ¦ÌM. The proposed sensor revealed good selectivity towards a group of transition metal ions.
%K copper
%K solid-contact electrode
%K PVC membrane
%K potentiometry
%K selectivity
%U http://www.mdpi.com/1424-8220/13/4/4367