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Nitrite-Selective Electrode Based On Cobalt(II) tert-Butyl-Salophen Ionophore |
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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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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. doi: 10.1002/elan.201300607 https://archive-ouverte.unige.ch/unige:40156 |