Nitrite-Selective Electrode Based On Cobalt(II)tert-Butyl-Salophen Ionophore
| Autor: | Marcin Pawlak, Eric Bakker, Majid Ghahraman Asfhar, Bastien Néel, Denis Dorokhin, Gastón A. Crespo |
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| Rok vydání: | 2014 |
| Předmět: |
Nitrite
Ion-selective electrode Inorganic chemistry Ionophore chemistry.chemical_element 010402 general chemistry 01 natural sciences Chloride Analytical Chemistry Salophen chemistry.chemical_compound Bromide Electrochemistry medicine Selectivity Detection limit Chemistry 010401 analytical chemistry 0104 chemical sciences Membrane ddc:540 Electrode Potentiometry Cobalt medicine.drug |
| Zdroj: | Electroanalysis ELECTROANALYSIS Electroanalysis, Vol. 26, No 3 (2014) pp. 473-480 |
| ISSN: | 1040-0397 |
| DOI: | 10.1002/elan.201300607 |
| Popis: | 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 6M 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. © 2014 WILEY VCH Verlag GmbH Co. KGaA Weinheim. |
| Databáze: | OpenAIRE |
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