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Table 5 Repeatability, stability, and recovery of seven compounds in Danmu preparations

From: Chromatographic fingerprints analysis and determination of seven components in Danmu preparations by HPLC–DAD/QTOF-MS

Compounds

Danmu Capsule

Danmu Syrup

Repeatability (RSD %, n = 6)

Stability (RSD%, n = 6)

Recovery, mean (RSD%, n = 6)

Repeatability (RSD%, n = 6)

Stability (RSD%, n = 6)

Recovery, mean (RSD%, n = 6)

Protocatechuic acid

0.78

0.82

103.27 (1.23)

1.93

0.88

102.98 (1.43)

Neochlorogenic acid

2.76

2.38

94.67 (1.05)

2.46

2.53

98.77 (3.62)

Cryptochlorogenic acid

2.47

2.93

99.65 (2.01)

2.98

2.77

100.09 (2.34)

Chlorogenic acid

1.18

1.65

100.34 (1.54)

2.86

0.69

102.38 (1.17)

Sweroside

1.47

2.38

100.97 (1.27)

2.09

2.33

103.64 (1.15)

Strictosamide

0.50

0.73

97.81 (1.08)

1.69

0.44

95.34 (1.29)

Vincosamide

1.36

2.84

98.86 (1.64)

2.87

0.40

102.42 (1.02)