Precision

Concentration (mg/ml)

Retention Time

(Mean ± SD)

% RSD Time

Peak Area

(Mean ± SD)

% RSD Area

Intra-day precision

25

3.39 ± 0.09

2.60

111.42 ± 2.71

2.44

75

3.48 ± 0.01

0.37

291.05 ± 6.67

2.29

150

3.46 ± 0.02

0.55

487.57 ± 8.83

1.81

Inter-day precision

25

3.49 ± 0.02

0.46

619.04 ± 3.32

0.54

75

3.50 ± 0.02

0.61

594.08 ± 11.36

1.91

150

3.50 ± 0.03

0.79

714.06 ± 19.31

2.79