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. Author manuscript; available in PMC: 2022 Apr 6.
Published in final edited form as: Anal Chem. 2021 Mar 15;93(13):5468–5475. doi: 10.1021/acs.analchem.0c05145

Figure 4.

Figure 4.

TENG TAP IM-MS analysis of different GP. (a) PA(18:0/18:1(9Z)) in negative-ion mode, (b) PE(18:1(9E)/18:1(9E)) in negative-ion mode, (c) PS(16:0/18:1(9Z)) in negative-ion mode, and (d) PE(18:1(9E)/18:1(9E)) in positive-ion mode. Negative-ion mode experiments used 25 mM NH4OAc as an additive. Positive-ion mode experiments used 5 mM LiOAc as an additive.