the detergents which is used as germicide is?

A method has been developed for determining qualitatively and quantitatively all commonly used soap germicides. It includes the halogenated salicylanilides, halogenated carbanilides and bisphenols both alone and in mixtures. Elimination of interfering substances is accomplished by extraction with dimethylformamide followed by evaporation to dryness. The residue is then taken up in both acidic alcohol and basic alcohol. The ultraviolet patterns obtained under these conditions are typical of the various germicides and are used to identify them.