Comparative Pharmacokinetic Study of Taxifolin after Oral Administration of Fructus Polygoni Orientalis Extract in Normal and Fibrotic Rats by UPLC-MS/MS

Table 3

Intra- and interday precision and accuracy of taxifolin in rat plasma (intraday: 6 replicates at each concentration; interday: 18 replicates at each concentration).

Concentration (ng/mL)	Intraday (n = 6)			Interday (n = 6 × 3)
	Measured concentration (ng/mL)	Precision (RSD, %)	Accuracy (RE, %)	Measured concentration (ng/mL)	Precision (RSD, %)	Accuracy (RE, %)
10	9.3 ± 1.1	11.8	7.5	8.8 ± 1.1	12.5	12.0
50	47.9 ± 3.3	6.9	4.1	48.6 ± 3.5	7.1	2.8
1000	981.8 ± 42.9	4.4	1.8	999.2 ± 42.9	4.3	0.1
4000	3886.4 ± 106.2	2.7	2.8	3821.4 ± 117.4	3.1	4.5