Figure 5From: Organization of GC/MS and LC/MS metabolomics data into chemical libraries(A) An ion group including the protonated molecular ion, isotopes, adducts, and multimers of inosine (m + H+ 269) based on correlation across a 33 sample set study. (B) The authentic standard spectrum of inosine. (C) The correlation between the protonated molecular ion of inosine at 269 m/z and an in-source fragment at 137 m/z.Back to article page