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