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Table 2 Calibration curves, detection limits and quantification limits of the saponins by HPLC-UV

From: Chemical fingerprinting and quantitative analysis of a Panax notoginseng preparation using HPLC-UV and HPLC-MS

Peak No.

Saponins

M.W.

Calibration curvea

Linear range (μg/ml)

R 2

LOD (μg/ml)

21

Ginsenoside Rk3

619

y = 6.7519x - 7.6085

   

22

Ginsenoside Rh4

619

y = 6.7519x - 7.6085

   

12

Ginsenoside Rh1

637

y = 6.7519x - 7.6085

4.28-68.5

0.9993

2.14

14

Ginsenoside F1

637

y = 6.7519x - 7.6085

   

17

Notoginsenoside T5/Unkown

752

y = 5.4845x - 4.8387

   

19

Notoginsenoside T5/Unkown

752

y = 5.4845x - 4.8387

   

18

Unkown

765

y = 5.4845x - 4.8387

   

20

Unkown

765

y = 5.4845x - 4.8387

   

26

Ginsenoside Rk1

765

y = 5.4845x - 4.8387

   

27

Ginsenoside Rg5

765

y = 5.4845x - 4.8387

   

11

Ginsenoside Rg2

783

y = 5.6715x - 5.6679

3.34-53.5

0.9993

1.67

23

20(S)-Rg3

783

y = 5.4845x - 4.8387

2.95-47.3

0.9990

1.48

24

20(R)-Rg3

783

y = 5.0923x - 2.8995

2.63-42.0

0.9994

1.75

25

Ginsenoside F2

783

y = 5.4845x - 4.8387

   

2

Ginsenoside Rg1

800

y = 5.1367x - 76.471

16.64-1065

0.9990

10.29

5

Ginsenoside Rf

800

y = 5.1367x - 76.471

   

8

SC1

901

y = 4.3254x - 5.0843

   

1

Notoginsenoside R1

932

y = 4.3254x - 5.0843

10.26-492.5

0.9997

7.42

3

Ginsenoside Re

945

y = 4.4123x - 29.465

43.28-692.5

0.9993

4.73

15

Ginsenoside Rd

945

y = 4.1199x - 5.5681

16.64-532.5

0.9993

4.43

16

Notoginsenoside K

945

y = 4.1199x - 5.5681

   

13

Ginsenoside Rb2

1077

y = 3.8757x + 2.4182

4.84-77.5

0.9995

1.95

7

Notoginsenoside I

1092

y = 3.8757x + 2.4182

   

9

Ginsenoside Rb1

1107

y = 3.5815x - 29.548

15.98-1022.5

0.9992

7.91

10

Notoginsenoside Fc

1209

y = 3.5815x - 29.548

   

4

Notoginsenoside R4

1240

y = 3.5815x - 29.548

   

6

Notoginsenoside Fa

1240

y = 3.5815x - 29.548

   
  1. a y: peak area of analyte; x: concentration of analyte (μg/ml)