title: Detection of ampicillin contamination in nitrofurantoin preparations by high pressure liquid chromatography.
mesh_terms: D000667:Ampicillin / Q000032:analysis*; D002214:Capsules / Q000032:analysis; D002845:Chromatography; D004340:Drug Contamination; D008722:Methods; D009582:Nitrofurantoin / Q000032:analysis*; D014466:Ultraviolet Rays
chemical_list: D002214:Capsules; D000667:Ampicillin; D009582:Nitrofurantoin