Simultaneous Determination and Pharmacokinetic Comparisons of Multi-Ingredients after Oral Administration of Radix Salviae Miltiorrhizae Extract, Hawthorn Extract, and a Combination of Both Extracts to Rats

Table 4

Stabilities of SAB, RA, LA, DSS, and HP (𝑛=3).

Aanlyte	Added (𝜇g/mL)	Stored at room temperature for 12 h		Stored at −20°C for 30 days		Three freeze-thaw stability
		Found (𝜇g/mL)	RSD (%)	Found (𝜇g/mL)	RSD (%)	Found (𝜇g/mL)	RSD (%)
DSS	8.10	7.94±0.18	2.22	7.63±0.31	4.00	7.72±0.06	0.80
	1.62	1.57±0.04	2.55	1.56±0.07	4.40	1.48±0.06	4.08
	0.324	0.315±0.02	4.77	0.313±0.03	9.51	0.308±0.02	6.02
HP	7.50	7.30±0.11	1.47	7.02±0.24	3.47	6.99±0.25	3.53
	1.50	1.48±0.02	1.02	1.37±0.03	2.40	1.41±0.05	3.37
	0.300	0.288±0.02	4.83	0.280±0.02	7.72	0.290±0.02	7.73
RA	7.55	7.37±0.19	2.52	7.18±0.26	3.65	7.16±0.36	5.05
	1.51	1.50±0.05	3.08	1.41±0.04	2.52	1.40±0.03	2.33
	0.302	0.292±0.02	4.95	0.275±0.02	7.94	0.286±0.03	8.93
LA	17.6	17.1±0.16	0.96	16.4±0.55	3.34	16.2±0.39	2.38
	3.52	3.39±0.06	1.63	3.16±0.21	6.48	3.17±0.17	5.33
	0.879	0.797±0.03	3.24	0.773±0.06	7.40	0.785±0.04	4.45
SAB	18.7	18.2±0.42	2.29	17.7±0.75	4.27	17.6±0.38	2.17
	3.74	3.63±0.13	3.46	3.44±0.13	3.65	3.55±0.14	3.93
	0.935	0.894±0.05	5.36	0.861±0.02	2.51	0.851±0.05	5.72