Table 4.

The stability in autosampler for 6 h, three freeze-thaw cycles of the three compounds in rat plasma ($\overline{x}$ ± SD, n = 6).

Analyte	Concentration of Analyte (μg/mL)	Sampler 6 h			Three Freeze-Thaw
		Mean ± SD (μg/mL)	Accuracy (%)	Precision (RSD, %)	Mean ± SD (μg/mL)	Accuracy (%)	Precision (RSD, %)
Chlorogenic acid	0.025	0.025 ± 0.01	101 ± 14.8	14.5	0.021 ± 0.002	84.0 ± 7.7	9.1
	0.79	0.76 ± 0.027	96.9 ± 3.4	3.5	0.73 ± 0.009	93.1 ± 1.1	1.2
	3.15	3.13 ± 0.131	99.5 ± 4.1	4.2	3.04 ± 0.070	96.5 ± 2.2	2.3
Scutellarin	0.012	0.011 ± 0.001	97.1 ± 5.9	6	0.01 ± 0.001	87.9 ± 3.1	3.5
	0.37	0.37 ± 0.020	100 ± 5.3	5.2	0.34 ± 0.016	91.1 ± 4.2	4.6
	5.94	5.86 ± 0.222	98.6 ± 3.7	3.8	5.67 ± 0.217	95.5 ± 3.7	3.8
Scutellarein	0.019	0.018 ± 0.002	94.1 ± 2.1	2.2	0.015 ± 0.003	78.5 ± 9.8	17.6
	0.246	0.246 ± 0.007	100 ± 3.1	3.1	0.24 ± 0.015	96.1 ± 0.6	0.6
	3.94	4.02 ± 0.165	102 ± 4.2	4.1	3.83 ± 0.025	97.3 ± 0.6	0.7