Table 1.

Calculated solubility parameters using Hoy and Haftyzer- Van Krevelen methods

Material type	Material name	Solubility Parameter Hoftyzer-van krevelen method	Solubility Parameter Hoy method
Solid lipid	Stearic acid	17.43	18.16
Solid lipid	GMS	19.37	20.93
Liquid lipid	Oleic acid	17.31	18.31
Surfactant	Soy lecithin	18.84	17.42
Surfactant	Span 80	22.48	22.01
Surfactant	PVA	28.98	21,012
Surfactant	Tween 80	19.17	21.86
Drug	Ceftriaxone sodium	32.14	22.09