Fig. 5.

The effect on the [M + X]⁺ regioisomeric separation capability in the differential mobility spectrometer of X in a 1:1 mixture of PC (16:0/18:1) and (18:1/16:0) (A) and resolving gas pressure in a 1:1 mixture of PC (16:0/18:1) and (18:1/16:0) with X = Ag⁺ (B). *Relative intensity in each trace in A represents the extracted ion abundance for those products corresponding to neutral loss of 183 Da from CID of [M + X]⁺ ions. Each trace in B represents the total ion abundance resulting from CID of m/z 866.5 [M + Ag]⁺ ions. In both panels, the data have been approximately normalized to the respective solid black trace.