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Determination of copper in synthetic samples.
| Method | * mg/mL Cu2+ | Recovery % |
|---|---|---|
| Direct potentiometry | 3.24 ± 0.3 | 96.1 |
| Standard addition potentiometry | 3.23 ± 0.4 | 95.8 |
| AAS | 3.33 ± 0.2 | 98.8 |
Sample content: 3.37 mg/ml Cu2+
Average of four measurements
