Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore

Bastien Neel; Majid Ghahraman Asfhar; Gaston A Crespo; Marcin Pawlak; Denis Dorokhin; Eric Bakker

doi:10.1002/elan.201300607

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Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore

Journal article

Peer reviewed

Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore

Bastien Neel, Majid Ghahraman Asfhar, Gaston A Crespo, Marcin Pawlak, Denis Dorokhin and Eric Bakker

Electroanalysis, Vol.26(3), pp.473-480

2014

DOI: https://doi.org/10.1002/elan.201300607

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Abstract

Analytical Chemistry

Physical Chemistry (incl. Structural)

Other Chemical Sciences

nitrite

ion-selective electrode

salophen

selectivity

potentiometry

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.

Details

Title: Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore
Authors: Bastien Neel (Author) - University of Geneva, Switzerland
Majid Ghahraman Asfhar (Author) - University of Geneva, Switzerland
Gaston A Crespo (Author) - University of Geneva, Switzerland
Marcin Pawlak (Author) - University of Geneva, Switzerland
Denis Dorokhin (Author) - University of Geneva, Switzerland
Eric Bakker (Author) - University of Geneva, Switzerland
Publication details: Electroanalysis, Vol.26(3), pp.473-480
Publisher: Wiley - V C H Verlag GmbH & Co. KGaA
Date published: 2014
DOI: 10.1002/elan.201300607
ISSN: 1040-0397
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99447750702621
Output Type: Journal article

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Web Of Science research areas: Chemistry, Analytical; Electrochemistry