Table I.

Parameters of high-performance liquid chromatography of cajanonic acid A purity detection.

No.	Retention time (min)	Height	Area	Relative area (%)
1	2.17	2.633	0.201	0.06
2	2.25	3.091	0.340	0.11
3	2.54	1.895	0.511	0.16
4	2.81	3.020	0.213	0.07
5	2.93	0.311	0.019	0.01
6	3.11	4.186	1.940	0.61
7	3.25	0.722	0.057	0.02
8	4.07	1.069	0.143	0.04
9	4.24	0.407	0.047	0.02
10	4.75	0.138	0.013	0.00
11	5.04	0.889	0.182	0.06
12	5.23	0.520	0.074	0.02
13	6.01	0.395	0.065	0.02
14	7.44	0.570	0.109	0.03
15	9.72	853.547	312.24	98.22
16	12.1	0.978	0.405	0.13
17	21.91	0.590	0.535	0.17
18	30.70	1.072	0.807	0.25
19	30.73	0.005	0.000	0.00
Total	161.00	876.038	317.901	100