title: EPR study of gamma induced radicals in amino acid powders.
abstract: To better understand the composite character of amino acids EPR spectra, the radiolysis and reactions which occurred after irradiation of amino acids, a comparative EPR study of a few simple amino acids has been made in order to identify qualitatively and quantitatively the different radiation-induced radicals in amino acid powders. A spin-trapping methodology has been developed and carried out on irradiated glycine, alanine and valine.
authors.affiliation: LRMO, case D52, UMR 6171, Faculté des Sciences de Saint-Jérôme, 13397 Marseille 20, France.
authors.forename: S
authors.initials: S
authors.lastname: Talbi
authors.forename: J
authors.initials: J
authors.lastname: Raffi
authors.forename: S
authors.initials: S
authors.lastname: Aréna
authors.forename: J
authors.initials: J
authors.lastname: Colombani
authors.forename: P
authors.initials: P
authors.lastname: Piccerelle
authors.forename: P
authors.initials: P
authors.lastname: Prinderre
authors.forename: J-M
authors.initials: JM
authors.lastname: Dolo
mesh_terms: D000409:Alanine / Q000737:chemistry / Q000528:radiation effects; D000596:Amino Acids / Q000737:chemistry / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals / Q000737:chemistry / Q000528:radiation effects*; D005720:Gamma Rays; D005998:Glycine / Q000737:chemistry / Q000528:radiation effects; D015394:Molecular Structure; D011208:Powders; D013696:Temperature; D013997:Time Factors; D014633:Valine / Q000737:chemistry / Q000528:radiation effects
chemical_list: D000596:Amino Acids; D005609:Free Radicals; D011208:Powders; D014633:Valine; D000409:Alanine; D005998:Glycine