Mass Spectrometry in Pharmacokinetic Studies of a Synthetic Compound for Spinal Cord Injury Treatment

Figure 6

The structure of IG20 glycoside (a) and its sulfuric form (b). The change in elemental composition, exact mass and reduction in molecular weight by mass detection in negative-ion mode is shown. Arrows pointed the presence/absence of potassium in the IG20 structure.

(a)

(b)