title: Fractionation of DNA on columns of poly-L-lysine supported on kieselguhr.
mesh_terms: D000818:Animals; D002417:Cattle; D002499:Centrifugation, Density Gradient; D002845:Chromatography; D003596:Cytosine / Q000032:analysis; D004247:DNA / Q000032:analysis*; D004269:DNA, Bacterial / Q000032:analysis; D004926:Escherichia coli; D006147:Guanine / Q000032:analysis; D008239:Lysine; D008722:Methods; D008837:Micrococcus; D008970:Molecular Weight; D009691:Nucleic Acid Denaturation; D009711:Nucleotides / Q000032:analysis; D010455:Peptides; D011511:Proteus; D012822:Silicon Dioxide; D012965:Sodium Chloride; D013045:Species Specificity; D013950:Thymus Gland / Q000032:analysis; D014732:Vibration
chemical_list: D004269:DNA, Bacterial; D009711:Nucleotides; D010455:Peptides; D012965:Sodium Chloride; D006147:Guanine; D012822:Silicon Dioxide; D003596:Cytosine; D004247:DNA; D008239:Lysine