Table 5.

Extraction recovery and matrix effect of the components in rat plasma sample.

Compounds	Concentration (ng/ml)	Extraction recovery (%)	RSD%	Matrix effect (%)	RSD%
Stachydrine	10.00	87.10 ± 1.17	1.34	103.94 ± 4.22	4.06
	250.00	93.12 ± 1.14	1.22	103.81 ± 6.39	6.15
	2000.00	85.02 ± 2.22	2.61	88.58 ± 1.70	1.92
Danshensu	2.00	84.24 ± 0.68	0.81	85.03 ± 7.26	8.54
	50.00	89.22 ± 4.94	5.54	88.22 ± 3.85	4.37
	400.00	85.51 ± 1.04	1.22	85.98 ± 0.22	0.25
Chlorogenic acid	0.20	88.03 ± 3.66	4.16	91.42 ± 8.00	8.75
	5.00	89.21 ± 3.08	3.45	90.33 ± 2.94	3.26
	40.00	87.72 ± 0.45	0.52	92.34 ± 0.27	0.29
Protocatechuic acid	0.20	86.57 ± 0.81	2.09	85.90 ± 3.10	3.61
	5.00	88.33 ± 2.51	2.84	88.74 ± 0.50	0.57
	40.00	85.28 ± 0.28	0.32	88.10 ± 1.69	1.92
Plantamajoside	0.10	87.25 ± 0.88	1.00	85.52 ± 6.29	7.36
	2.50	83.12 ± 2.47	2.98	89.68 ± 0.44	0.49
	20.00	82.34 ± 1.51	1.83	89.84 ± 1.80	2.00
Aesculetin	0.20	83.80 ± 1.60	1.91	98.30 ± 1.30	1.32
	5.00	87.13 ± 1.93	2.22	91.67 ± 0.94	1.02
	40.00	84.64 ± 1.36	1.61	95.37 ± 0.80	0.84
Isoquercitrin	0.20	87.04 ± 4.16	4.78	87.79 ± 2.81	3.20
	5.00	89.18 ± 2.83	3.18	93.97 ± 0.95	1.01
	40.00	86.62 ± 0.62	0.71	92.37 ± 0.70	0.76
Ferulic acid	2.00	95.70 ± 5.63	5.88	94.87 ± 3.82	4.02
	50.00	93.47 ± 3.56	3.81	99.51 ± 1.18	1.19
	400.00	92.69 ± 0.66	0.71	98.60 ± 0.41	0.42
Baicalin	10.00	95.80 ± 3.07	3.20	103.45 ± 5.20	5.02
	250.00	94.92 ± 3.65	3.84	105.52 ± 4.57	4.33
	2000.00	98.81 ± 2.93	2.96	108.22 ± 3.33	3.08
Baicalein	2.00	82.55 ± 1.71	2.07	87.40 ± 4.05	4.63
	50.00	84.04 ± 3.97	4.72	90.89 ± 1.53	1.68
	400.00	87.01 ± 4.56	5.24	84.47 ± 3.44	4.08