title: A study of extraction columns for aqueous polymer two-phase systems.
mesh_terms: D002708:Chlorella / Q000302:isolation & purification; D002845:Chromatography / Q000295:instrumentation; D004247:DNA / Q000032:analysis*; D004926:Escherichia coli / Q000302:isolation & purification; D009691:Nucleic Acid Denaturation; D011108:Polymers / Q000032:analysis*; D011506:Proteins / Q000032:analysis*; D012996:Solutions / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet
chemical_list: D011108:Polymers; D011506:Proteins; D012996:Solutions; D004247:DNA