Table 1: Retention times and masses for flavonoid standards run on an ACE C18 column.

Compound

Rt (min)

m/z

Chrysin

26.2

253.0506

Pinocembrin

26.8

255.0663

Apigenin

20.4

269.0457

Galangin

27.1

269.0457

Narigenin

20.5

271.0614

Pinobanksin

21.2

271.0614