title: Zone precipitation on porous glass with (NH 4) 2 SO 4: a simple high capacity fractionation procedure for crude protein mixtures.
mesh_terms: D000581:Amidohydrolases / Q000032:analysis*; D000645:Ammonium Sulfate; D011232:Chemical Precipitation; D002845:Chromatography; D006801:Humans; D008099:Liver / Q000201:enzymology; D008722:Methods; D000644:Quaternary Ammonium Compounds
chemical_list: D000644:Quaternary Ammonium Compounds; D000581:Amidohydrolases; D000645:Ammonium Sulfate