title: Removal of an endogenous fluorescent compound from urine to allow quantitation of low concentrations of hydroxychloroquine and metabolites by high-performance liquid chromatography.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D006801:Humans; D006886:Hydroxychloroquine / Q000652:urine*; D013050:Spectrometry, Fluorescence
chemical_list: D006886:Hydroxychloroquine