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Formation and fragmentations of organometallic complexes involving aliphatic α‐amino acids and transition metal cations—a plasma desorption mass spectrometry study
Author(s) -
Bouchonnet Stéphane,
Hoppilliard Yannik,
Ohanessian Gilles
Publication year - 1995
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.1190300126
Subject(s) - chemistry , chloride , mass spectrometry , alanine , transition metal , valine , fragmentation (computing) , isoleucine , amino acid , desorption , mass spectrum , leucine , inorganic chemistry , medicinal chemistry , organic chemistry , chromatography , catalysis , adsorption , biochemistry , computer science , operating system
Amino acid/transition metal chloride mixtures were studied by plasma desorption mass spectrometry. The six aliphatic α‐amino acids were considered: glycine (Gly), alanine (Ala), valine (Val), leucine (Leu), isoleucine (Ile) and proline (Pro), together with four transition metal chloride salts: CoCl 2 , NiCl 2 , CuCl 2 and FeCl 2 . Mixtures spectra show that MCat + complexes are formed where M = amino acid and Cat = Co, Ni, Cu or FeCl. Fragmentations of MCat + ions lead to both organometallic and organic ions. Isotopic labelling has allowed to demonstrate some fragmentation mechanisms.