Reference standards

Precision (n = 6)

Repeatability (n = 6)

Stability (24 h, n = 6)

Recovery (n = 3)

Intra-day

Inter-day

Mean (mg/g)

RSD (%)

Mean (mg/g)

RSD (%)

Mean (mg/g)

RSD (%)

Mean (mg/g)

RSD (%)

Recovery (%)

RSD (%)

Gallic Acid

0.41

0.93

0.40

1.07

0.80

1.81

0.53

1.73

100.22

3.03

Oxypaeoniflorin

1.89

1.18

1.82

1.32

2.17

1.65

4.60

0.84

98.96

0.72

Paeonolide

1.14

0.88

1.09

1.22

0.23

2.63

0.76

2.19

98.05

1.78

Paeoniflorin

1.70

0.47

1.57

1.28

11.31

2.50

20.91

2.45

99.21

2.57

Benzoylpaeoniflorin

1.12

0.64

1.04

2.08

1.29

1.78

1.15

1.98

98.84

1.18

Paeonol

2.31

0.73

2.20

0.99

19.98

0.39

19.67

0.52

99.54

1.15