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| Level | Nominal concentration (ng mL−1) | n | Recovery (%) | |
|---|---|---|---|---|
| Mean ± SD (n = 3) | % CV | |||
| LLOQ | 50 | 3 | 80.22 ± 1.44 | 1.80 |
| LQC | 80 | 3 | 80.28 ± 1.18 | 1.47 |
| MQC | 1500 | 3 | 78.68 ± 1.62 | 2.06 |
| HQC | 4000 | 3 | 80.28 ± 1.95 | 2.43 |
| Mean | 12 | 79.86 ± 1.55 | 1.94 | |
n, number of samples; SD, standard deviation; CV, coefficient of variation.
