title: Potentiometric determination of theopaverin components in nonaqueous media.
abstract: Potentiometric method for determination of papaverine hydrochloride (PAP) and theobromine (Tb) in a mixture, without separation of the components was designed. Determinations were carried out in nonaqueous media, using solvents differentiating the strength of estimated bases.
mesh_terms: D006863:Hydrogen-Ion Concentration; D008722:Methods; D010208:Papaverine / Q000032:analysis*; D011199:Potentiometry; D012996:Solutions; D012997:Solvents; D013607:Tablets; D013805:Theobromine / Q000032:analysis*
chemical_list: D012996:Solutions; D012997:Solvents; D013607:Tablets; D010208:Papaverine; D013805:Theobromine