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ICP-OES instrument parameters for determination of Cd and Pb.
| Metal ion | Power (kW) | Plasma gas flow (L min−1) | Auxiliary gas flow (L min−1) | Nebulizer gas flow rate (L min−1) | Delay time (sec) | Wavelength (nm) | Detection limit (μg L−1) |
|---|---|---|---|---|---|---|---|
| Cd | 1.4 | 15 | 1.5 | 0.7 | 12 | 226.502 | 0.2 |
| Pb | 220.353 | 1.8 |
