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E. Yu. Andreeva, S. G. Dmitrienko, Yu. A. Zolotov
Sorption of
caffeine and theophylline on hypercrosslinked polystyrene
Abstract
The sorption of caffeine and theophylline
from water solutions on hypercrosslinked polysttyrene MN-200 was studied. It is
shown, that sorption is described by the Langmuir equation. The conditions of
dynamic sorption concentration of caffeine and theophylline on a concentrating
colomn and the conditions of its desorption were found. A procedure of the
spectrophotometric determination of caffeine and theophylline with dynamic
preconcentration is proposed.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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