Table 5 Intermediate precision of silymarin analysis using HPLC and UPLC methods

	Compound	Peak area (RSD%)	Retention time (RSD%)
HPLC	Silychristin	0.87	0.79
	Silydianin	0.94	0.90
	Silybin A	0.86	1.45
	Silybin B	0.87	1.63
	Isosilybin A	0.89	1.98
	Isosilybin B	1.07	2.12
UPLC	Silychristin	0.38	0.03
	Silydianin	0.36	0.03
	Silybin A	0.37	0.21
	Silybin B	0.38	0.04
	Isosilybin A	0.38	0.04
	Isosilybin B	0.40	0.04