Determination of copper in seawater by adsorptive voltammetry with 1,2-dihydroxyanthraquinone-3-sulfonic acid
A method is described for the determination of copper in seawater by adsorptive stripping voltammetry after accumulation of a 1,2‐dihydroxyanthraquinone‐3‐sulfonic acid (DASA) complex. The effects of various operational parameters (pH, ligand concentration, potential, and accumulation time) on the r...
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| Veröffentlicht in: | Electroanalysis (New York, N.Y.) N.Y.), 1994-08, Vol.6 (8), p.683-688 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | A method is described for the determination of copper in seawater by adsorptive stripping voltammetry after accumulation of a 1,2‐dihydroxyanthraquinone‐3‐sulfonic acid (DASA) complex. The effects of various operational parameters (pH, ligand concentration, potential, and accumulation time) on the reduction current of the adsorbed chelate are discussed. A linear current concentration relationship was observed up to 5 × 10−8 M. The detection limit is 0.3 nM. |
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| ISSN: | 1040-0397 1521-4109 |
| DOI: | 10.1002/elan.1140060812 |