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. Author manuscript; available in PMC: 2021 May 6.
Published in final edited form as: J Am Soc Mass Spectrom. 2020 Apr 14;31(5):1093–1103. doi: 10.1021/jasms.0c00025

Figure 2.

Figure 2.

Demonstration of ion/ion reactions to identify double bond position(s) in the fatty acyl substituent of an unsaturated plasmalogen. (a) Product ion spectrum resulting from the ion/ion reaction between [MgPhen3]2+ dications and fragment ions generated via CID of [PE P-18:0/18:1(9Z) - H]−. (b) Product ion spectrum generated by BT CID of the product ions shown in (a). (c) Ion-trap CID spectrum of mass-selected [18:1(9Z) - H + MgPhen]+ (m/z 485.3).