title: Electrospray ionization, accurate mass measurements and multistage mass spectrometry experiments in the characterization of stereoisomeric isoquinoline alkaloids.
abstract: Mass spectrometry has been employed for the characterization of diastereoisomeric isoquinoline alkaloids. Electrospray ionization was used to generate MH(+) ions, and multistage collisionally activated spectra allowed differentiation among the different compounds via specific fragmentation patterns, whose mechanisms have also been elucidated by accurate mass measurements.
authors.affiliation: CNR, Area di Ricerca di Padova, Corso Stati Uniti 4, I-35020 Padova, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Gioacchini
authors.forename: Z
authors.initials: Z
authors.lastname: Czarnocki
authors.forename: Z
authors.initials: Z
authors.lastname: Arazny
authors.forename: I
authors.initials: I
authors.lastname: Munari
authors.forename: P
authors.initials: P
authors.lastname: Traldi
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D007546:Isoquinolines / Q000737:chemistry*; D013058:Mass Spectrometry; D013237:Stereoisomerism
chemical_list: D000470:Alkaloids; D007546:Isoquinolines