Spectrophotometric method

Tablet

Initial rate method

Fixed time method

Label claim

(% ± RSD)^a

t-value^b

F-value^b

Label claim

(% ± RSD)^a

t-value

F-value

Conventional

Trental

100.96 ± 1.28

0.09

0.72

101.60 ± 2.35

0.04

0.35

Pexal

100.81 ± 2.08

0.13

0.75

100.36 ± 2.91

0.59

0.31

Vasotal

97.91 ± 3.24

0.90

0.21

99.46 ± 2.42

0.22

0.51

96-Microwell plate

Trental

99.09 ± 0.67

0.75

0.10

100.21 ± 1.36

0.04

0.82

Pexal

101.92 ± 1.95

0.08

0.85

101.51 ± 1.96

0.10

0.59

Vasotal

98.62 ± 1.06

0.59

0.28

98.40 ± 1.24

0.70

0.46