The simultaneous @P04795@ of a normally soluble component with a macro-component from the same solution by the formation of mixed crystals, by @A00155@, occlusion or @M03800@.
Orange Book, 2nd ed., p. 86 [Terms] [Book]
See also:
PAC, 1979, 51, 1195. (Separation and Preconcentration of Trace Substances. I-Preconcentration for Inorganic Trace Analysis) on page 1199 [Terms] [Paper]