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Low-collision (a) and high-collision (b) energy exact mass spectra of LysoPC (16:0). The low-energy spectrum only contains the precursor ion at m/z 496.34029, whereas in the high-energy spectrum, various diagnostic fragments appear as the loss of the FA chain at 258.1101. Also, the major fragment ion at m/z 184.07273 can be seen corresponding to the polar head group.
