
Keywords: 2D-LC, Two-dimensional liquid chromatography; ACN, Acetonitrile; APCI, Atmospheric-pressure chemical ionization; BuOH, Butanol; CE, Cholesteryl ester; Cer, Ceramide; CID, Collision-induced dissociation; CL, Cardiolipin; DCM, dichloromethane; DDA, data-dep