Table 1.
Precision and accuracy for the analytes in human plasma (n=20, 5 replicates per day for 3 days).
| Analyte | Nominal concentration (ng/mL) | Intra-day | 
Inter-day | 
||||
|---|---|---|---|---|---|---|---|
| Measured concentration (ng/mL) | Precision (%RSD) | Accuracy (%RE) | Measured concentration (ng/mL) | Precision (%RSD) | Accuracy (%RE) | ||
| FA | 0.249 | 0.266 ±0.019 | 7.6 | 6.9 | 0.266±0.019 | 3.8 | 7.0 | 
| 0.595 | 0.639±0.025 | 5.0 | 7.3 | 0.627±0.033 | 6.6 | 5.3 | |
| 2.98 | 2.95±0.17 | 6.8 | −0.9 | 3.01±0.19 | 4.5 | 1.0 | |
| 15.9 | 16.0±0.7 | 4.7 | 0.5 | 16.2±0.8 | 8.8 | 1.8 | |
| 5-M-THF | 5.05 | 4.64±0.56 | 9.4 | −8.1 | 4.95±0.56 | 8.8 | −1.9 | 
| 12.1 | 13.1±0.2 | 3.1 | 8.1 | 13.2±0.43 | 4.0 | 8.9 | |
| 21.2 | 22.8±0.7 | 3.6 | 7.4 | 22.7±0.8 | 3.1 | 6.9 | |
| 42.4 | 46.2±0.9 | 2.9 | 8.9 | 45.5±1.9 | 8.4 | 7.2 | |
RSD: relative standard deviation.
RE: relative error.