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Botanical Studies

Table 2 Precision accuracy and repeatability (%RSD) of this method

From: Investigation of metabolites accumulation in medical plant Gentiana rigescens during different growing stage using LC-MS/MS and FT-IR

Analytes

Intra-day RSD%

Inter-day RSD%

Accuracy (n = 9)

Repeatability (n = 6)

Day 1

Day 2

Day 3

Pa

Pa

Pa

Pa

Mean recovery

RSD%

RSD%

UV detector

Loganic acid

1.13

2.09

2.36

1.58

102.6 %

1.93

1.79

Swertiamarin

1.53

1.72

1.97

1.46

101.8 %

2.62

1.88

Gentiopicroside

1.74

1.85

2.27

1.38

98.7 %

1.77

1.69

Isoorientin

1.22

2.21

2.33

2.25

102.2 %

2.56

1.71

Isovitexin

1.27

1.85

1.76

1.64

97.3 %

2.13

2.07

MRM

Loganic acid

1.26

1.58

1.71

1.57

99.3 %

1.99

1.86

Swertiamarin

1.45

1.31

1.67

1.78

100.9 %

1.86

1.22

Sweroside

1.48

1.37

1.94

0.76

101.4

1.78

1.85

Isoorientin

0.95

1.08

1.88

1.21

98.7 %

2.14

1.29

Isovitexin

1.66

1.33

1.92

1.59

98.9 %

1.98

2.24

  1. Pa: peak areas
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