title: Interference of diphylline in the ultraviolet spectrophotometry of therophylline.
mesh_terms: D005029:Ethylenediamines / Q000032:analysis / Q000097:blood; D006801:Humans; D013056:Spectrophotometry, Ultraviolet; D013806:Theophylline / Q000031:analogs & derivatives* / Q000032:analysis* / Q000097:blood
chemical_list: D005029:Ethylenediamines; D013806:Theophylline