Simultaneous Determination of Rutin, Luteolin, Quercetin, and Betulinic Acid in the Extract of Disporopsis pernyi (Hua) Diels by UPLC

Table 2

Recovery of the 4 compounds in Disporopsis pernyi (Hua) Diels ().

Compound	Background (g/mL)	Added (g/mL)	Found (g/mL)	Recovery (%)	RSD (%)
Rutin	5.63	2.56	8.32	101.6	1.31
		5.13	10.71	99.5	1.58
		7.70	13.55	101.6	0.89
Luteolin	2.51	1.44	3.94	99.7	1.22
		2.89	5.54	102.6	1.68
		4.34	6.59	96.2	1.06
Quercetin	3.87	1.73	5.42	96.8	1.65
		3.55	7.38	99.5	1.48
		5.19	9.24	102.0	1.37
Betulinic acid	2.41	1.26	3.58	97.5	0.94
		2.52	4.78	97.0	1.89
		3.78	6.25	101.0	1.78