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Abstract
A hypothesis of the mechanism of the stationary phase retention in a rotating coiled column has been further developed. Hydrophilic liquid systems have been considered in detail. Incomprehensible earlier peculiarities in their behavior have become rather clear. Starting from the balance of forces of quite different nature acting on two non-miscible liquids in the column, the basic equation of the retention process stability has been derived. Mathematical expressions have been obtained allowing one to estimate, theoretically, the volume of the stationary phase retained in the column, taking into account physico-chemical properties of a liquid system under investigation, and operation and basic design parameters of a planet centrifuge. The experimental data on the retention of the sec-butanol - water system support the speculation made.
ACKNOWLEDGMENT
This work was partly supported by the Russian Foundation of Basic Research, grant N 00-03-32642.