title: A solid-contact ion selective electrode for copper(II) using a succinimide derivative as ionophore.
abstract: 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 2-6. 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 µM. The proposed sensor revealed good selectivity towards a group of transition metal ions.
authors.affiliation: Faculty of Chemical Engineering and Environmental Protection, Gheorghe Asachi Technical University, Iasi, Romania. dtutulea@tuiasi.ro
authors.forename: Mihaela Dana
authors.initials: MD
authors.lastname: Tutulea-Anastasiu
authors.forename: Deivy
authors.initials: D
authors.lastname: Wilson
authors.forename: Manel
authors.initials: M
authors.lastname: del Valle
authors.forename: Cristina Mihaela
authors.initials: CM
authors.lastname: Schreiner
authors.forename: Igor
authors.initials: I
authors.lastname: Cretescu
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