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. Author manuscript; available in PMC: 2021 Jul 7.
Published in final edited form as: Anal Chem. 2020 Jun 16;92(13):9146–9155. doi: 10.1021/acs.analchem.0c01449

Figure 5.

Figure 5.

(a) HCD and (b) 193 nm UVPD (eight pulses, 2.5 mJ per pulse) mass spectra of m/z 772.51 from Pseudomonas aeruginosa lipid extract. (c) Fragment ion map of m/z 772.51 identified as a methylated PS (Me-PS) 16:1(9Δ)_18:1(11Δ) with the Me-PS moiety highlighted in green. (Fragmentation sites are color-coded to correspond to the ions identified in panels a and b.)