immobilized phase

in chromatography
https://doi.org/10.1351/goldbook.I02972
A stationary phase in which is immobilized on the support particles, or on the inner wall of the column tubing e.g. by in situ @P04740@ (cross-linking) after coating.
Source:
PAC, 1993, 65, 819. (Nomenclature for chromatography (IUPAC Recommendations 1993)) on page 823 [Terms] [Paper]