Table 2 Intra- and interday precision and accuracy
Intraday variation | ||||||
Spiked MTX concentration (μmol/L) | TDX/FLX | TBA-25FR | ||||
Measured concentration (μmol/L) (mean ± S.D.) | Accuracy (%) | CV (%) | Measured concentration (μmol/L) (mean ± S.D.) | Accuracy (%) | CV (%) | |
0.07 | 0.077 ± 0.013 | 110 | 16.3 | 0.096 ± 0.011 | 137.1 | 11.2 |
0.4 | 0.41 ± 0.025 | 102.5 | 6.2 | 0.41 ± 0.016 | 102.5 | 4.0 |
0.8 | 0.85 ± 0.041 | 106.3 | 4.9 | 0.92 ± 0.040 | 115 | 4.4 |
Interday variation | ||||||
Spiked MTX concentration (μmol/L) | TDX/FLX | TBA-25FR | ||||
Measured concentration (μmol/L) (mean ± S.D.) | Accuracy (%) | CV (%) | Measured concentration (μmol/L) (mean ± S.D.) | Accuracy (%) | CV (%) | |
0.07 | 0.073 ± 0.010 | 104.3 | 14.5 | 0.96 ± 0.013 | 137.1 | 13.1 |
0.4 | 0.41 ± 0.018 | 102.5 | 4.3 | 0.43 ± 0.020 | 107.5 | 4.6 |
0.8 | 0.83 ± 0.045 | 103.8 | 5.4 | 0.93 ± 0.051 | 116.3 | 5.4 |