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T. V. Kharitonova, N. I. Ivanova, A. V. Rudnev, B. D. Summ

Adsorption of dodecylpyridinium bromide and Triton X-100 from individual and mixed solutions on alumina

Abstract

Adsorption of Dodecylpyridinium Bromide (DDPB) and Triton X-100 (TX) on aluminium oxide (pH 6.5, 8.6, 10) was studied by UV-spectroscopy and Capillary Zone Electrophoresis. Adsorption of DDPB was found to be small and slightly increased with pH varying from 6.5 to 10. TX practically did not adsorb on solid surface. Small adsorption was confirmed by the data on the Al2O3 surface wetting by surfactant solutions. The adsorption of surfactants from the mixed solutions did not change as compared to the individual solutions. This is possibly due to small adsorption activity of the individual surfactants.
Moscow University Chemistry Bulletin.
2003, Vol. 44, No. 6, P. 417
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
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