Tissue Distribution of Total Flavonoids Extracts of Drynariae Rhizoma in Young and Old Rats by UPLC–MS/MS Determination

Table 9

Interday and intraday precision and accuracy data for assays of kaempferol in different tissues (n = 6).

Tissues	Spiked (ng/mL)	Interday			Intraday
		Mean ± SD	Precision (RSD, %)	Relative error (RE, %)	Mean ± SD	Precision (RSD, %)	Relative error (RE, %)
Liver	8.10	8.50 ± 1.23	14.47	4.94	8.36 ± 1.19	14.23	3.21
	40.50	45.97 ± 6.78	14.75	13.51	45.61 ± 5.04	11.05	12.62
	81.00	82.90 ± 11.10	13.39	2.35	85.23 ± 12.01	14.09	5.22
Spleen	12.20	11.06 ± 1.54	13.92	−9.34	10.75 ± 0.72	6.70	−11.89
	91.50	97.07 ± 12.65	13.03	6.09	94.94 ± 10.93	11.51	3.76
	183.00	188.84 ± 25.77	13.65	3.19	180.04 ± 22.90	12.72	−1.62
Lung	5.05	5.08 ± 0.63	12.40	0.59	4.76 ± 0.30	6.30	−5.74
	10.10	9.34 ± 1.28	13.70	−7.52	8.67 ± 0.50	5.77	−14.16
	25.25	23.74 ± 3.26	13.73	−5.98	22.77 ± 3.05	13.39	−9.82
Kidney	12.20	10.71 ± 1.12	10.46	−12.21	11.37 ± 0.55	4.84	−6.80
	42.70	41.36 ± 4.67	11.29	−3.14	43.56 ± 4.11	9.44	2.01
	85.40	86.37 ± 8.43	9.76	1.14	90.48 ± 6.45	7.13	5.95
Stomach	5.05	4.81 ± 0.69	14.35	−4.75	4.82 ± 0.59	12.24	−4.55
	10.10	10.51 ± 1.41	13.42	4.06	10.64 ± 1.47	13.82	5.35
	25.25	24.14 ± 3.37	13.96	−4.40	25.50 ± 3.41	13.37	0.99
Uterus	5.05	4.89 ± 0.54	11.04	−3.17	4.91 ± 0.50	10.18	−2.77
	10.10	10.35 ± 1.41	13.62	2.48	10.16 ± 1.10	10.83	0.59
	25.25	24.16 ± 2.84	11.75	−4.32	23.47 ± 3.31	14.10	−7.05
Intestine	8.10	8.31 ± 1.04	12.52	2.59	8.32 ± 1.15	13.82	2.72
	121.50	105.10 ± 11.92	11.34	−13.50	104.54 ± 5.05	4.83	−13.96
	243.00	264.29 ± 39.44	14.92	8.76	271.43 ± 36.43	13.42	11.70