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Analytical results of lead in different biological standards heated at 400°C for 1 h
| Reference Material | Concentration in mg/kg | Accuracy (%) | |
|---|---|---|---|
| Measured value (N = 5) | Certified value | ||
| Animal bone | 3.20 (±0.50) | 3.10 (±0.60) | 3.2 |
| Orchard leaves | 43.0 (±4.00) | 45.0 (±3.00) | 4.4 |
| Pine needles | 11.50 (±0.70) | 10.80 (±0.50) | 6.5 |
| Lobster | 0.31 (±0.15) | 0.35 (±0.13) | 11.4 |
| hepatopancreas Tomato leaves | 5.80 (±0.30) | 6.30 (±0.30) | 7.9 |
N = Number of measurements. Uncertainties are counting statistics.
