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Recoveries of certified reference material DOLT-3.
| Metal | Certified Value (mg/kg) | Obtained Value * (mg/kg) | Recovery (%) |
|---|---|---|---|
| Mercury a | 3.37 ± 0.14 | 3.35 ± 0.09 | 99.4 |
| Lead b | 0.32 ± 0.05 | 0.31 ± 0.03 | 96.8 |
| Cadmium b | 19.4 ± 0.6 | 19.34 ± 0.55 | 99.6 |
Notes: * The mean and standard deviation of the obtained value was calculated with ten samples (n=10). a Cold vapor-atomic absorption spectrometry (CV-AAS); b Inductively coupled plasma-optical emission spectrometry (ICP-OES).
