Figure 3.

MSn spectra used to confirm the identities of the aglycon skeletons of deprotonated flavonoid monoglucuronides. a) luteolin monoglucuronide, 461→285→ b) eriodictyol monoglucuronide, 463→287→ c) quercetin monoglucuronide, 477→301→ 268→ d) hesperetin monoglucuronide, 477→301→ e) myricetin monoglucuronide, 493→317→.