Measurement of cephalexin partition coefficients in PEGÂ +Â K2HPO4Â +Â H2O aqueous two-phase systems at 301.15, 306.15 and 311.15Â K

► Measuring of LLE systems containing PEG-K2HPO4-water at three temperatures ► Study of temperature and weight fractions of compounds' effects on tie-line and partitioning ► Measuring of cephalexin partitioning in the ATPS ► Mathematical modeling of cephalexin partitioning in the ATPS