Recent Applications of Mass Spectrometry in the Study of Grape and Wine Polyphenols

Figure 13

M⁺ signals recorded by LC-Chip-QTOF of isobaric pairs of anthocyanins at 𝑚/𝑧 611 (Cy-diglucoside (a) and Dp-p-coumaroylmonoglucoside (b)), at 𝑚/𝑧 625 (Pn-diglucoside (c) and Pt-p-coumaroylmonoglucoside (d)), and at 𝑚/𝑧 655 (Mv-diglucoside (e) and Mv-caffeoylmonoglucoside (f)) [49].

(a)

(b)

(c)

(d)

(e)

(f)