In gel-permeation chromatography, compounds are separated on the basis of their molecular size. Porous beads of the gel are packed into a column and the mixture is added at the top in an appropriate solvent. Large molecules move straight down the column, while small molecules stick in the pores and are retarded.
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.