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Determination of lead in synthetic and real samples by potentiometry (using sensor no. 9) and by AAS.
| Sample | Potentiometric μg/ml ± SD (n = 4) | AAS μg/ml ± SD (n = 4) | Recovery % |
|---|---|---|---|
| 1* | 11.1 ± 0.3 | 10.3 ± 0.2 | 99.1 |
| 2* | 31.6 ± 0.4 | 30.9 ± 0.3 | 101.6 |
| 3* | 41.7 ± 0.3 | 41.0 ± 0.2 | 100.6 |
| wastewater | 30.1 ± 0.4 | 29.8 ± 0.2 |
synthetic samples
