Analyte

QC concentrations (µg/ml)

Unextracted response (Mean ± SD)

Extracted response (Mean ± SD)

Recovery (%)

Mean recovery (Mean ± SD)

CV %

Voriconazole

0.10

1660 ± 88

1699 ± 106

97.69

109.17 ± 9.92

9.08

0.30

4646 ± 261

4446 ± 354

104.49

3.00

50506 ± 4287

42220 ± 2349

119.62

7.00

111172 ± 7630

96779 ± 11743

114.87

Fluconazole

10

73196 ± 4803

62089 ± 2699

117.88

118.15 ± 10.29

8.71