gel filtration n chromatography in which the material to be fractionated separates primarily according to molecular size as it moves through a column of a gel and is washed with a solvent so that the fractions appear successively at the end of the column called also gel chromatography, molecular sieve chromatography
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a method for column chromatography in which high molecular weight substances are separated according to molecular size; see gel-filtration chromatography.Medical dictionary. 2011.