Polymerized phosphonium ionic liquid functionalized silica microspheres as mixed-mode stationary phase for liquid chromatographic separation of phospholipids

•Polymerized phosphonium ionic liquid-functionalized stationary phase was developed.•The introduced [P888Allyl]Br can mimic the structure of phospholipid molecules.•The PIL@SiO2 column simultaneously achieved lipid classes and species separation.•The column was successfully employed to separate phospholipids from soy lecithin.