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Table 4 The results of precision of seven compounds in Danmu preparations

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

Compounds

Intra-day (RSD%, n = 5)

Inter-day (RSD%, n = 6)

Low

Middle

High

Low

Middle

High

Protocatechuic acid

0.67

0.34

0.70

1.62

0.14

1.23

Neochlorogenic acid

1.04

1.28

0.78

1.54

1.77

0.99

Cryptochlorogenic acid

1.70

0.66

0.41

1.25

0.43

0.90

Chlorogenic acid

1.23

1.42

0.57

1.08

1.11

0.52

Sweroside

1.39

0.27

0.64

1.39

0.16

1.37

Strictosamide

1.17

0.18

0.58

1.48

0.16

1.00

Vincosamide

1.91

0.44

0.50

1.36

0.51

1.09