259217.fig.003a
(a)
259217.fig.003b
(b)
259217.fig.003c
(c)
259217.fig.003d
(d)
259217.fig.003e
(e)
259217.fig.003f
(f)
259217.fig.003g
(g)
259217.fig.003h
(h)
Figure 3: The negative ion nanospray product ion spectra of the eight flavonoids studied. Spectrum (a) is of quercetin, 1: (precursor ion (PI) m/z 301), (b) myricetin, 2: (PI m/z 317), (c) apigenin, 3: (PI m/z 269), (d) luteolin, 4: (PI m/z 285), (e) naringenin, 5: (PI m/z 271), (f) hesperetin, 6: (PI m/z 301), (g) catechin, 7: (PI m/z 289), and (h) epigallocatechin 8: (PI m/z 305).