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E. V. Ivanaynen, A. V. Pirogov, O. A. Shpigun
Optimization of working conditions for polyelectrolyte sorbents
Abstract
Some factors affecting
the working stability of polyelectrolyte sorbents were investigated. It was
found that retention time decrease is not resulted from polymer-modifier
desorbtion. Influence of silanol group dissociation on additional ionene
retention on the sorbent surface was shown. The interconnection between sorbent
efficiency impairment, heavy metals absorbtion and microbial contamination was found.
The effect of organic additives on chromatographic behaviour of some inorganic
anions was studied. Optimum working conditions for polyelectrolyte sorbents
were selected. They provided constant original sorbent properties more than for
1.5 month.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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