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Title

Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore
Authors
Néel, Bastien
Ghahraman Afshar, Majid
Crespo Paravano, Gaston Adrian
Pawlak, Marcin
Dorokhin, Denis
Bakker, Eric
Published in Electroanalysis. 2014, vol. 26, no. 3, p. 473-480
Abstract A series of polymeric nitrite-selective electrodes containing a new lipophilic ionophore Co(II) tert-butyl-salophen is reported. The stability of Co(II) ionophores within a PVC-based membrane was investigated by leaching experiments. Different membrane compositions were explored in order to reach the lowest possible limit of detection for a PVC-based nitrite selective polymeric membrane electrode containing this ionophore. The optimal electrode showed a limit of detection of 2×10−6 M and exhibited four orders of magnitude of discrimination over nitrate, chloride and bromide. The electrodes were evaluated in undiluted human urine and attest to the robustness of the ionophore.
Keywords Nitrite — Ion-selective electrode — Salophen — Selectivity — Potentiometry
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Structures
Faculté des sciences, Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée
Citation
(ISO format) 		NÉEL, Bastien et al. Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore. In: Electroanalysis, 2014, vol. 26, n° 3, p. 473-480. https://archive-ouverte.unige.ch/unige:40156

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Deposited on : 2014-09-10

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