title: Analysis of some antispasmodic drugs: oxyphencyclimine and glycopyrronium bromide.
abstract: Oxyphencyclimine hydrochloride (via its tertiary amine group) and glycopyrronium bromide (via its quaternary ammonium group) were analysed by two different colorimetric methods. The first method depends on the dye-salt formation method using tropeolin ooo as the anionic dye and 1,2-dichloroethane as solvent for the extraction of the formed ion pairs. The coloured ion pairs have maximum absorption at 483-486 nm. The second method is based on the use of citric acid-acetic anhydride reagent. The coloured complex has maximum absorption at 562-565 nm.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004355:Drug Stability; D006024:Glycopyrrolate / Q000032:analysis*; D007202:Indicators and Reagents; D010276:Parasympatholytics / Q000032:analysis*; D011743:Pyrimidines / Q000032:analysis*; D011759:Pyrrolidines / Q000032:analysis*; D013607:Tablets / Q000032:analysis
chemical_list: D007202:Indicators and Reagents; D010276:Parasympatholytics; D011743:Pyrimidines; D011759:Pyrrolidines; D013607:Tablets; C100201:oxyphencyclimine; D006024:Glycopyrrolate