title: Separation and determination of polymyxin B in formulations.
mesh_terms: D002626:Chemistry, Pharmaceutical; D002852:Chromatography, Ion Exchange; D004304:Dosage Forms / Q000032:analysis; D007202:Indicators and Reagents; D007475:Ion Exchange Resins; D008722:Methods; D011113:Polymyxins / Q000032:analysis*; D013053:Spectrophotometry
chemical_list: D004304:Dosage Forms; D007202:Indicators and Reagents; D007475:Ion Exchange Resins; D011113:Polymyxins