the surfactants were sodium dodecyl sulphate ( sds ; anionic ) , cetyltrimethylammonium bromide ( ctab ; cationic ) and two nonionic compounds , octylphenoxy polyethoxyethanol ( triton x100 ) and polyoxyethylene ( 20 ) sorbitan monooleate ( tween 80 ) .
C0069359
octylphenoxy polyethoxyethanol
C0032483
polyoxyethylene