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. 2010 Feb;65(2):237–243. doi: 10.1590/S1807-59322010000200017

Table 1.

Mean confidence limits of analytical method of fluconazole in plasma.

Parameter Unit Confidence Limits
Linearity (triplicate) μg mL−1 0.4 – 100.0
Linear regression (n=3 curves) r2 = 0.998
LOD (0.2 μg mL−1) (n=10) CV% 2.6
LOQ (0.4 μg mL−1) (n=10) CV% 3.2
Absolute recovery (n=24) % 98.6
Relative recovery (n=24) % 104.2
Precision/within-day (n=9) CV%
90.0 μg mL−1 1.44
50.0 μg mL−1 4.60
1.2 μg mL−1 3.21
Precision/between-days (n=18) CV%
90.0 μg mL−1 0.99
50.0 μg mL−1 1.51
1.2 μg mL−1 0.74
Accuracy/within-day (n=9) % (mean+/− SD)
90.0 μg mL−1 98.1 – 100.1
50.0 μg mL−1 92.6 – 95.8
1.2 μg mL−1 101.3 – 107.5
Accuracy/between-days (n=18) % (mean+/− SD)
90.0 μg mL−1 97.6 – 100.7
50.0 μg mL−1 89.3 – 99.1
1.2 μg mL−1 103.7 – 105.1
Stability/thawing cycles SE%
Cycle 1(n=12) 0.06
Cycle 2(n=12) 1.65
Cycle 3(n=12) 1.22

Abbreviations: coefficient of variation (CV%), standard deviation of mean (SD), systematic error (SE%), higher and lower limits (mean+/− SD) for accuracy and precision. Symbol: r2: coefficient of determination.