Abstract
Amine antioxidants and antiozonants, vulcanization accelerators and some other additives used for the preparation of rubber mixtures were analyzed by combined gel permeation and thin-layer chromatographic methods. Attention was concentrated in the first place on the gel permeation chromatographic method. Elution volumes and relative elution volumes were determined for all compounds under investigation. A flow refractometer combined with a flow UV analyzer was used for detection. Such an arrangement is suitable for the analysis of a mixture of aliphatic and aromatic compounds that have similar elution volumes. Acetone extracts of rubbers and mixtures of technical additives representing the main components of vulcanization mixtures applied in Czechoslovakia were analyzed, and the possibility of the quantitative determination of the individual components in mixtures directly from chromatographic records was investigated.
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