title: [Determination of pyridoxine hydrochloride, nicotinamide and nicotinic acid by a method of differential interferometry].
mesh_terms: D002626:Chemistry, Pharmaceutical; D009536:Niacinamide / Q000032:analysis*; D009539:Nicotinic Acids / Q000032:analysis*; D011736:Pyridoxine / Q000032:analysis*
chemical_list: D009539:Nicotinic Acids; D009536:Niacinamide; D011736:Pyridoxine
vernacular_title: Opredelenie piridoksina gidrokhlorida, nikotinamida i nikotinovoĭ kisloty metodom differentsial'noĭ interferometrii