Electrochemical determination of nitrite at a bare glassy carbon electrode; why chemically modify electrodes?
The oxidation of nitrite was studied at a bare glassy carbon (GC) electrode in aqueous solution using cyclic voltammetry, square wave voltammetry and chronoamperometry. A mechanism for the electrode reaction is proposed. A limit of detection (LOD) of 4 × 1 0- 7 M was obtained for amperometry and thi...
| Glavni autori: | , , |
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| Format: | Journal article |
| Jezik: | English |
| Izdano: |
2010
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| Sažetak: | The oxidation of nitrite was studied at a bare glassy carbon (GC) electrode in aqueous solution using cyclic voltammetry, square wave voltammetry and chronoamperometry. A mechanism for the electrode reaction is proposed. A limit of detection (LOD) of 4 × 1 0- 7 M was obtained for amperometry and this is evaluated with reference to literature reports for NO2- detection; in particular, the possible merits of using chemically modified electrodes as compared to 'bare' unmodified electrodes are critically assessed. © 2009 Elsevier B.V. All rights reserved. |
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