New indicator reaction for the determination of ultralow concentrations of copper by the kinetic method
The optimum conditions of the oxidation of diphenylamine-4-sulfonate by peroxomonosulfate were studied, and a method for the catalytic determination of copper in aqueous solutions was developed on the basis of this reaction. The method is simple in implementation, highly sensitive ( c l = 0.02 μg/L)...
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| Veröffentlicht in: | Journal of analytical chemistry (New York, N.Y.) N.Y.), 2008-03, Vol.63 (3), p.300-303 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The optimum conditions of the oxidation of diphenylamine-4-sulfonate by peroxomonosulfate were studied, and a method for the catalytic determination of copper in aqueous solutions was developed on the basis of this reaction. The method is simple in implementation, highly sensitive (
c
l
= 0.02 μg/L), and sufficiently selective in the direct determination of copper in different samples. |
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| ISSN: | 1061-9348 1608-3199 |
| DOI: | 10.1134/S1061934808030209 |