Table 2.
Intra- and inter-day precision and accuracy for voriconazole.
| Intra-day (n = 6) |
Inter-day (n = 24) |
|||||
|---|---|---|---|---|---|---|
| Theoretical concentration (mg/L) | Determined concentration (mean ± SD ng/mL) | Precision (RSD,%) | Accuracy (RE,%) | Determined concentration (mean ± SD ng/mL) | Precision (RSD,%) | Accuracy (RE,%) |
| 0.10 | 0.099 ± 0.01 | 8.4 | −0.8 | 0.097 ± 0.01 | 11.8 | −3.2 |
| 0.20 | 0.20 ± 0.02 | 8.1 | −1.8 | 0.19 ± 0.02 | 7.9 | −2.8 |
| 1.00 | 1.00 ± 0.10 | 10.4 | 0.4 | 1.03 ± 0.08 | 7.4 | 2.5 |
| 8.00 | 7.48 ± 0.24 | 3.2 | −6.6 | 7.94 ± 0.55 | 6.9 | −0.7 |
RSD, relative standard deviations; SD, standard deviation.