| Autor: |
Veronika Tinková, Jiří Barek, Jiří Zima, Joseph Wang |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Collection of Czechoslovak Chemical Communications. 76:1033-1041 |
| ISSN: |
1212-6950 |
| DOI: |
10.1135/cccc2011068 |
| Popis: |
Direct current (DC) voltammetry and differential pulse (DP) voltammetry using a carbon paste electrode (CPE) have been used for the determination of trace amounts of ecotoxic 1,2-diaminoanthraquinone (DAAQ). The limit of determination (LD) of DAAQ for DC voltammetry was 2 × 10–6 mol l–1, and for DP voltammetry 2 × 10–7 mol l–1 under the optimized conditions in a mixed Britton–Robinson buffer pH 12 and methanol (1:9) medium. Adsorptive accummulation of the analyte on the surface of CPE decreased the limit of determination to 2 × 10–8 mol l–1 for DP voltammetry. Practical applicability of these newly developed methods was verified on model samples of river water. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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