Table 2 Accuracy and precision
Accuracy and precision (n = 5) | Nominal concentration (mg/L) | |||
|---|---|---|---|---|
50 (HQC) | 25 (MQC) | 0.5 (LQC) | 0.25 (LLOQ) | |
Within run a | ||||
Mean (mg/L) | 53.3 | 23.3 | 0.5 | 0.29 |
SD | 3.20 | 1.02 | 0.06 | 0.01 |
Recovery (%) | 106.6 | 93.1 | 99.5 | 115.0 |
CV (%) | 6.0 | 4.40 | 12.2 | 3.03 |
Between run b | ||||
Mean (mg/L) | 50.6 | 24.9 | 0.46 | 0.24 |
SD | 3.87 | 2.0 | 0.06 | 0.04 |
Recovery (%) | 101.2 | 99.7 | 91.5 | 97.9 |
CV (%) | 7.64 | 8.03 | 13.5 | 17.8 |