Preliminary Studies on Liquiritin, Deoxyschizandrin, and Tanshinone II A as Potential Anti-Neurodegenerative Disease Agent: Determination by Reverse-Phase Liquid Chromatography in Tianwang Buxin Pills

Table 4

The precision test results (n = 6).

Number	Liquiritin			Deoxyschizandrin			Tanshinone II A
	Peak area	Average	RSD (%)	Peak area	Average	RSD (%)	Peak area	Average	RSD (%)
1	300.90	298.57	1.23	659.60	678.33	1.88	270.30	273.37	1.43
2	299.40			684.10			276.90
3	299.30			684.80			268.60
4	291.20			664.70			273.80
5	300.40			688.70			278.80
6	300.20			688.10			271.80