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Quality Assurance and Quality Control for Elemental Analysis
| Heavy metal | Recovery (%) | CV (%)* |
|---|---|---|
| Se | 116.7 | 1.3 |
| Pb | 103.8 | 0.9 |
| As | 89.4 | 1.7 |
| Cd | 100.1 | 1.1 |
| Tl | 98.8 | 0.8 |
| Ni | 107.8 | 2.4 |
| V | 80.7 | 1.3 |
| Co | 103.5 | 1.9 |
| Hg | 92.6 | 2.1 |
Coefficient of variance for the duplicate determinations.
