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Bias and imprecision of ETG in nails.
| Intra-assay (n = 5) |
Inter-assay (n = 20) |
||||
|---|---|---|---|---|---|
| Compound | Target | Bias (%) | Imprecision (%CV) | Bias (%) | Imprecision (%CV) |
| ETG | 20 pg/mg | 98.9 - 115.1 | 4.6 - 5.7 | 106.3 | 7.8 |
| 40 pg/mg | 101.1 - 104.4 | 5.1 - 6.9 | 102.3 | 5.7 | |
| 200 pg/mg | 90.3 - 103.1 | 2.3 - 5.4 | 96.5 | 6.0 | |
