Table 1.
Concentrations of selected elements in the certified reference materials in milligrams per kilogram dry weight
| Metal | Bone meal SRM NIST 1486 | OD/RV (%) | Fish tissue IAEA-407 | OD/RV (%) | ||
|---|---|---|---|---|---|---|
| RV | OD (n = 7) | RV | OD (n = 8) | |||
| Zn | 147.0 ± 16.0 | 132.4 ± 4.1 | 90.0 | 67.1 | 65.8 ± 3.8 | 98.1 |
| Cu | 0.80a | 0.74 ± 0.01 | 92.5 | 3.28 | 3.12 ± 0.28 | 95.1 |
| Pb | 1.335 ± 0.014 | 1.190 ± 0.306 | 89.1 | 0.12 | 0.11 ± 0.03 | 91.7 |
| Cd | 0.003a | 0.0020 ± 0.0002 | 66.7 | 0.189 | 0.176 ± 0.010 | 93.1 |
| Hg | – | – | – | 0.222 | 0.237 ± 0.002 | 106.8 |
RV reference value, OD own determination
aEstimated value