Figure 1

Feature-based precursor ion selection. (a) LC-MS map containing four features a - d. (b) MS spectra of the same map with feature peaks. The coloured ellipses show the selected precursors for the different strategies: green with DDA, blue with GA and red with the ILP. Limiting the number of precursors to 2 per spectrum, feature c is never chosen neither with DDA nor with GA. With GA no feature is selected in spectrum S₃. The ILP selection selects all four features once.