TABLE 1.

Retention time (t_R), MS data, and UV spectra for identifying six compounds in epimedium extract by HPLC-Q-TOF-MS/MS.

Peak no.	R1	R2	tR (min)	Identification	Formula for M	[M-H]-		References
						Measured mass	Calcd mass
1	---	---	4.67	Hyperoside	C21H20O12	463.0875	463.0882	Zhao et al. (2018)
2	Rha-glc	glc	14.38	Epimedin A	C39H50O20	837.2825	837.2823	Wang et al. (2010), Zhao et al. (2018)
3	Rha-xyl	glc	16.93	Epimedin B	C38H48O19	807.2714	807.2717	Wang et al. (2010), Zhao et al. (2018)
4	Rha-rha	glc	18.76	Epimedin C	C39H50O19	821.2866	821.2874	Wang et al. (2010)
5	Rha	glc	23.16	Icariin	C33H40O15	675.2291	675.2283	Wang et al. (2010), Zhao et al. (2018)
6	Rha	H	49.88	Baohuoside I	C27H30O10	513.1753	513.1766	Zhao et al. (2018)