Table 3.

Accuracy and precision for the analysis of TSG, EDG and emodin in rat plasma.

Compound	Added concentration (ng/mL)	Intra-day (n = 6)			Inter-day (n = 18)
		Found concentration (ng/mL) (mean ± SD)	Accuracy (%)	Precision (RSD%)	Found concentration (ng/mL) (mean ± SD)	Accuracy (%)	Precision (RSD%)
TSG	5	5.00 ± 0.47	100.09 ± 9.42	9.41	4.92 ± 0.46	98.36 ± 9.28	9.44
	50	47.82 ± 5.52	95.63 ± 11.04	11.55	48.76 ± 5.24	97.53 ± 10.47	10.74
	500	537.23 ± 11.32	107.45 ± 2.26	2.11	537.16 ± 13.39	107.43 ± 2.68	2.49
EDG	5	4.55 ± 0.54	91.04 ± 10.80	11.86	4.72 ± 0.43	94.41 ± 8.57	9.07
	50	50.89 ± 2.88	101.78 ± 5.77	5.67	51.77 ± 3.63	103.53 ± 7.27	7.02
	500	524.88 ± 31.69	104.98 ± 6.34	6.04	513.62 ± 28.26	102.72 ± 5.65	5.50
Emodin	5	5.58 ± 0.26	111.56 ± 5.29	4.74	5.35 ± 0.36	107.02 ± 7.12	6.65
	50	56.37 ± 2.12	112.74 ± 4.25	3.77	54.85 ± 2.60	109.69 ± 5.19	4.73
	500	511.90 ± 15.78	102.38 ± 3.16	3.08	510.11 ± 37.39	102.02 ± 7.48	7.33