Concentration (ng/mL) | Intra-day precision and accuracy (n = 6) | Inter-day precision and accuracy (n = 18) | ||
---|---|---|---|---|
Accuracy (%) ± SD | RSD (%) | Accuracy (%) ± SD | RSD (%) | |
1 | 111.60 ± 7.76 | 6.96 | 109.81 ± 4.56 | 4.15 |
15 | 97.11 ± 7.30 | 7.51 | 103.57 ± 6.57 | 6.34 |
400 | 108.08 ± 4.02 | 3.73 | 99.63 ± 3.04 | 3.05 |
800 | 108.92 ± 5.54 | 5.08 | 101.32 ± 2.76 | 2.72 |