title: Direct chiral resolution in an aqueous two-phase system using the counter-current distribution principle.
mesh_terms: D000818:Animals; D002417:Cattle; D003377:Countercurrent Distribution; D008970:Molecular Weight; D011485:Protein Binding; D012710:Serum Albumin, Bovine / Q000032:analysis; D013237:Stereoisomerism; D014364:Tryptophan / Q000302:isolation & purification*
chemical_list: D012710:Serum Albumin, Bovine; D014364:Tryptophan