dialysis

https://doi.org/10.1351/goldbook.D01666
The process of separating a @C01172@ @S05727@ from a @C01171@-free solution by a @MT06878@ permeable to all components of the system except the @C01172@ ones, and allowing the exchange of the components of small molar mass to proceed for a certain time.
Source:
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 608 [Terms] [Paper]