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Nitrite-Selective Electrode Based On Cobalt( II) tert-ButylSalophen Ionophore
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2014 (English)In: Electroanalysis, ISSN 1040-0397, E-ISSN 1521-4109, Vol. 26, no 3, 473-480 p.Article in journal (Refereed) Published
Abstract [en]

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 2x10(-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.

Place, publisher, year, edition, pages
John Wiley & Sons, 2014. Vol. 26, no 3, 473-480 p.
Keyword [en]
Nitrite, Ion-selective electrode, Salophen, Selectivity, Potentiometry
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-206922DOI: 10.1002/elan.201300607ISI: 000332379700003Scopus ID: 2-s2.0-84897677737OAI: oai:DiVA.org:kth-206922DiVA: diva2:1094357
Note

QC 20170522

Available from: 2017-05-09 Created: 2017-05-09 Last updated: 2017-05-22Bibliographically approved

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Crespo, Gaston A.
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