Name

Added amount

(mg)

Measured amount

(mg)

Rate of recovery (%)

Average recovery rate (%)

RSD (%)

Sodium danshensu

2.56

5.17

101

99.4

1.34

2.56

5.13

100

2.56

5.08

98.2

2.56

5.10

98.9

2.56

5.08

98.3

2.56

5.11

99.2

Protocatechuic aldehyde

0.316

0.621

96.6

95.4

0.616

0.316

0.617

95.3

0.316

0.616

95.2

0.316

0.617

95.5

0.316

0.616

95.0

0.316

0.616

95.1

Salvianolic acid B

0.806

1.54

96.1

95.5

1.49

0.806

1.53

94.4

0.806

1.56

97.7

0.806

1.54

95.7

0.806

1.54

95.5

0.806

1.52

93.6

4-Coumaric acid

0.0686

0.137

100

98.0

2.39

0.0686

0.135

98.0

0.0686

0.136

99.0

0.0686

0.135

98.3

0.0686

0.135

98.5

0.0686

0.132

93.5

Rosmarinic Acid

0.535

1.01

94.2

92.4

1.66

0.535

1.01

94.3

0.535

0.997

91.1

0.535

0.997

91.2

0.535

0.997

91.1

0.535

1.00

92.8