ISO DIS 17293-2

Description / Abstract: This International Standard specifies a method for the determination of mono-chloroacetic acid (monochloroacetate) and di-chloroacetic acid (di-chloroacetate) in surfactants by ion chromatographic method.

The method applies for anionic surfactants such as alkyl (phenyl) ethoxylated carboxylate (AEC) or amphoteric surfactants such as alkyl imidazoline carboxylate , alkyl dimethyl betaine and fatty acetyl propyl dimethyl betaine.

The limit of detection (LOD) should be< 0,01 μg/ml for mono-chloroacetic acid and< 0,05 μg/ml for dichloroacetic acid, respectively; and the limit of quantification ( LOQ ) should be< 0,1 μg/ml for each standard ( using a standard solution ).

The LOD, at 1 g of sample weight, should be <1 mg/kg for mono-chloroacetic acid and< 5 mg/kg for dichloroacetic acid, respectively; and the LOQ should be <10 mg/kg for each acid.