A Solid-Contact Ion Selective Electrode for Copper(II) Using a Succinimide Derivative as Ionophore
Tutulea-Anastasiu, Mihaela Dana (Universitatea Tehnică Gheorghe Asachi (Iasi, Romania))
Wilson Massó, Deivy (Universitat Autònoma de Barcelona. Departament de Química)
Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
Schreiner, Cristina Mihaela (Universitatea Tehnică Gheorghe Asachi (Iasi, Romania))
Cretescu, Igor (Universitatea Tehnică Gheorghe Asachi (Iasi, Romania))

Date:	2013
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.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Copper ; Solid-contact electrode ; PVC membrane ; Potentiometry ; Selectivity
Published in:	Sensors (Basel, Switzerland), Vol. 13 (2013) , p. 4367-4377, ISSN 1424-8220

DOI: 10.3390/s130404367
PMID: 23549362

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