Assessment of the Aromatase Inhibitory Activity of Ma-Huang-Tang (MHT) and Its Active Compounds

Table 5

Accuracy and intra- and interday precision of the standard compounds in MHT.

Compound	Spiked amount (mg/mL)	Content (mg/mL)		Recovery test (%, n = 5)	Precision test (n = 5)
		Expected	Measured		Intraday RSD^a (%)	Interday RSD (%)
1	0.025	0.0929	0.0929	100.2	0.89	0.29
	0.05	0.1179	0.1192	102.6	0.58	0.59
	0.1	0.1679	0.1708	102.9	0.13	0.25
5	0.025	0.0349	0.0348	99.6	0.83	0.24
	0.05	0.0599	0.0606	101.3	0.34	0.40
	0.1	0.1099	0.1117	101.8	0.06	0.18
6	0.025	0.0328	0.0322	97.8	0.68	0.39
	0.05	0.0578	0.0582	100.7	0.10	0.05
	0.1	0.1078	0.1087	101.0	0.04	0.11
7	0.025	0.0261	0.0267	102.3	2.06	0.18
	0.05	0.0511	0.0523	102.4	0.12	0.10
	0.1	0.1011	0.1029	101.8	0.14	0.07

^aRSD: relative standard deviation.