Study of chemical selectivity of molecular binary mixed micelles of sodium 10-undecenyl sulfate and sodium N-undecenyl leucinate using linear solvation energy relationships model

► Molecular mixed micelles of a sulfated and a leucinated surfactants were prepared. ► These molecular binary mixed micelles were applied as pseudostationary phases in MEKC. ► These molecular micelles were characterized using LSER model. ► Cavity formation and hydrogen bonding are significant on selectivity and retention.