Table 2.

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

Peak No.	Saponins	M.W.	Calibration curve a	Linear range (μg/ml)	R2	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

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