Figure 8.

Zoomed view of Figure 7 showing the location of the first two labelled fragments in the TIC (A), as revealed in the extracted wavelength chromatogram at 495 nm (B), as highlighted with the dotted-line arrows. Fragments i, iii, and v with deconvoluted isotopic masses of 4106.55, 4451.60 and 4780.64 Da, respectively, have molecular masses far greater than those expected for the first two labelled fragments with similar retention time ii and iv, which have the expected values of 913.15 and 1218.19 Da, respectively.