title: [Identification of related substances in nicergoline by HPLC-MS].
abstract: To study the related substances in nicergoline, electrospray positive ionization high resolution TOF/MS was used for the determination of the accurate mass and elemental composition of the related substances. Triple quadrupoles tandem MS/MS was employed for the determination of the fragmentations of the parent ions. 16 related substances were detected and identified to be eight synthetic by-products and eight degradation products, by using impurity references matching, product mass spectra fragmentations elucidation, and verified further according to synthetic processes and stress testing results. The results obtained are valuable for nicergoline manufacturing process control and quality assurance.
authors.forename: Xue-fang
authors.initials: XF
authors.lastname: Zeng
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.forename: Min
authors.initials: M
authors.lastname: Song
authors.forename: Tai-jun
authors.initials: TJ
authors.lastname: Hang
mesh_terms: D002851:Chromatography, High Pressure Liquid; D009530:Nicergoline / Q000138:chemical synthesis / Q000737:chemistry*; D011786:Quality Control; D053719:Tandem Mass Spectrometry
chemical_list: D009530:Nicergoline