凝胶过滤层析( gelfiltration chromatography) (a)gel filtration chromatography Large protein Small protein Layer Add buffer sample to wash Collect on proteins °。 fractions column through column 一般 由葡 聚糖 制成 Polymer gel bead凝胶过滤层析（gel filtration chromatography） 一般 由葡 聚糖 制成