Table 8 Measurement uncertainty of elements determination in plant aqueous extracts and plant dry mass
| Element | Measurement uncertainty, % (k = 2) | |
|---|---|---|
| Plant aqueous extracts | Plant dry mass | |
| Cd | 5.8 | 8.7 |
| Cr | 7.5 | 8.8 |
| Cu | 5.7 | 8.9 |
| Fe | 8.2 | 8.3 |
| Mn | 6.2 | 6.4 |
| Ni | 6.6 | 8.8 |
| Zn | 5.9 | 6.3 |
| As | 7.7 | 9.8 |