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The content of heavy metals in standard reference material for carrot
| Analyte | Carrot (reference material) | |
|---|---|---|
| Reference value (mg kg−1) | Measured value (mg kg−1) | |
| Cu | 4.1 ± 0.3 | 3.89 |
| Pb | 0.43 ± 0.07 | 0.39 |
| As | 0.11 ± 0.02 | 0.11 |
| Cd | 0.034 ± 0.004 | 0.036 |
| Hg | 0.0032 ± 0.0008 | 0.0026 |
