Medical Term:
density gradient centrifugation
Definition: ultracentrifugation of substances in concentrated solutions of cesium salts or of sucrose; at equilibrium, the medium exhibits a concentration (hence density) gradient increasing in the direction of centrifugal force and the substances of interest collect in layers at the levels of their densities.
See: isopycnic zone
Synonym(s): band centrifugation, zone centrifugation
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Examples: glitazone, GI cocktail, etc.
