Method | PSA (Cd) | CCSA (Cu) |
Working electrode | Mercury film | Gold disk electrode |
Deposition potential | −1200 | −350 |
Versus Ag/AgCl 3M (mV) Angular velocity (rpm) | 4130 | 4130 |
Deposition time (min.) | 15 | 5 |
Stripping | Chemical oxidation | Applied current of 2 μA |
Reproducibility (n = 9) | 4% (at 0.1 nM level) | 2% (at 3.1 nM level) |
Precision (n = 6) | 7% | 4% |
Detection limit | 0.01 | 0.017 |