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Table 2 Stability results of FAV and NTZ in spiked human plasma at different conditions

From: Eco-sustainable chromatographic method for the determination of favipiravir and nitazoxanide for COVID-19: application to human plasma

Analyte

Concentration (µg mL−1

%Recovery

Bench top (6 h)

Autosampler for 24 h

Three freeze thaw cycle

FAV

8

106.15

108.33

108.87

25

104.81

106.38

106.55

50

103.00

104.70

104.75

Mean ± RSD

104.65 ± 1.85

106.47 ± 1.81

106.72 ± 2.07

NTZ

8

103.88

104.32

102.76

25

101.48

105.40

102.73

50

100.99

101.88

104.55

Mean ± RSD

102.11 ± 1.55

103.87 ± 1.81

103.35 ± 1.04

  1. *Average of 5 determinations