Table 2 Precision and accuracy in the assay determination of FEX using the proposed LC method
Day of analysis | Spiked concentration (μg/ml) | Mean recovery (%) ± RSDa |
|---|---|---|
Repeatability (Intra-day precision) | ||
Day 1 | 0.1 | 101.5 ± 0.89 |
10 | 99.4 ± 0.49 | |
50 | 101.2 ± 0.67 | |
Day 2 | 0.1 | 103.8 ± 0.99 |
10 | 100.2 ± 0.67 | |
50 | 101.8 ± 0.89 | |
Day 3 | 0.1 | 102.4 ± 0.1.2 |
10 | 99.4 ± 0.59 | |
50 | 100.7 ± 0.55 | |
Intermediate precision (Inter-day precision) | ||
0.1 | 102.5 ± 1.13 | |
10 | 99.6 ± 0.46 | |
50 | 101.23 ± 0.54 | |