title: Contamination of detergent-purified rat liver nuclei by cytoplasmic ribosomes.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D002467:Cell Nucleus; D008099:Liver / Q000648:ultrastructure; D011092:Polyethylene Glycols; D000644:Quaternary Ammonium Compounds; D051381:Rats; D012270:Ribosomes
chemical_list: D000644:Quaternary Ammonium Compounds; D011092:Polyethylene Glycols