Table 2 Recoveries of gallic acid, ellagic acid, punicalagin and punicalin in different sample solutions (n = 3)

96.22

98.80

100.06

97.05

97.37

2.75

2.42

2.64

2.05

2.19

99.84

95.81

92.37

98.14

97.52

1.82

1.90

2.64

2.10

2.43

98.00

99.47

96.55

95.30

96.50

2.11

2.37

2.58

2.03

2.38

96.47

97.67

97.25

97.30

97.51

1.61

2.87

1.58

2.74

2.68

95.35

94.30

96.49

96.21

97.92

2.28

1.92

2.41

1.97

1.82

97.42

96.28

95.78

97.38

98.26

2.57

2.26

2.63

2.37

2.02