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Description
Colorimetric determination of detergents
Cationic detergents react with bromophenol blue to form a coloured complex which is extracted with an organic phase. The reference standard is N-cetyl-N,N,N-trimethylammoniumbromide
Detergents are surface-active substances which can be classified into anionic, cationic and nonionic groups. They can be found in municipal and industrial waste waters.
