Effects of Hot Water Extracts from Polygonum multiflorum on Ovariectomy Induced Osteopenia in Mice

Table 1

HPLC-ESI/MS data and identities of compounds associated with peaks detected in the HPLC chromatograms of samples of Polygonum multiflorum.

Peak	Retention time; (min)	Identification	[M+H]+; ()	[M−H]+; ()	[M+Na]+; ()	(nm)
1	17.625	Rhein	—	283	307	256, 430
2	19.642	Emodin	271	—	293	288, 438
3	21.745	Chrysophanol	255	—	277	256, 428
4	22.501	Physcion	285	—	307	286, 436
5	12.149	2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside	407	—	429	214, 320
6	12.156	2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside	407	—	429	214, 320
7	19.658	Emodin	271	—	293	288, 438
8	22.512	Physcion	285	—	307	286, 436

Peak shown in the chromatograms presented in Figure 1.