Parameter | Applied potential enabling the Pb accumulation | Electrolysis time | supporting electrolyte nature | supporting electrolyte concentration | Potential scan rate | De-aeration time (N2 1 bar) | Lowest concentration considered for the calibration curve I = f([Pb2+]) | Limit of detection |
Optimum value selected | ā1.3 V | 10 min | HClO4 | 0.03 M | 0.2 Vāsā1 | 10 min | 3 µg/L | 0.138 µg/L |