DIFFERENT METHODS OF EXTRACTION, REDUCTION AND PURIFICATION OF AROMATIC AMINES FROM TEXTILE MATERIALS.

Chemicals safety control and eco-properties have become a priority for the textile industry to avoid the negative effects on humans and environment. The European regulations limit the presence of 24 listed carcinogenic aromatic amines by 30 mg/kg of textile material. The paper aims to present a comparison between different parameters of procedures for the extraction, reduction and purification of the amines obtained by the reductive cleavage of azo dyes in order to choose the optimal method. In order to test the amine extracts obtained, the 8-point calibration curve was performed for the mixture of the 24 standard amines and the solutions obtained from the extraction of the dyestuffs from the textile samples were analysed. Their testing was performed by liquid chromatography and the results were confirmed by the gas chromatography method. [ABSTRACT FROM AUTHOR]