title: [Determination of theophylline in the presence of ethophylline].
mesh_terms: D002021:Buffers; D055598:Chemical Phenomena; D002621:Chemistry; D004396:Coloring Agents; D005029:Ethylenediamines / Q000032:analysis*; D013696:Temperature; D013806:Theophylline / Q000032:analysis*
chemical_list: D002021:Buffers; D004396:Coloring Agents; D005029:Ethylenediamines; D013806:Theophylline
vernacular_title: Bestimmung von Theophyllin neben Ethophyllin.