منابع مشابه
The Solid Phase Photolysis and Radiolysis of Ethylene at 20 to 77 K
Fi lms of e th ylen e conde nsed ont o a co ld fin ge r ma int a ine d a t 20 K we re ir radi a ted with photons whose e ne rgy ra nged fro m 8.4 to 21.2 e V. At the highe r ph oton e ne rgies th e re la tive yie lds of produc ts co mpa re we ll with those seen in th e radi o lys is of so lid e th yle ne. Expe rime nt s on C H2C D2 d e m ons tra te th a t in the photo lys is h ydrogen is ma inl...
متن کاملResearch Paper Electron Beam and Gamma Radiolysis of Solid-State Metoclopramide
Purpose. Study the radiolysis of solid-state metoclopramide hydrochloride at various absorbed doses. Elucidate the structure of the degradation products to gain information on the radiolysis mechanisms. Methods. Solid-state metoclopramide samples were irradiated at several doses with gamma rays and highenergy electrons to evaluate the influence of the dose rate. High-performance liquid chromato...
متن کاملRadiolysis of proteins in the solid state: an approach by EPR and product analysis.
Radio-induced modifications in proteins have been studied using several techniques. Electron paramagnetic resonance (EPR) was used to characterize free radicals, and analysis methods (high-performance liquid chromatography, capillary electrophoresis) were employed to visualize final degraded forms. Whereas EPR indicates that perthiyl radicals are formed, analysis does not detect any compound in...
متن کاملCore-level electronic structure of solid-phase glycine, glycyl-glycine, diglycyl-glycine, and polyglycine: X-ray photoemission analysis and Hartree-Fock calculations of their zwitterions.
X-ray photoelectron spectroscopy (XPS) has been used to investigate the core-level electronic structures of glycine (G) and its peptides, including glycyl-glycine (GG), diglycyl-glycine (GGG), and polyglycine (poly-G), in their powder forms. Increasing the number of G units in the peptides does not change the locations of the respective C 1s, N 1s, and O 1s features corresponding to different f...
متن کاملGamma-radiolysis of aqueous solution of proline.
Gamma-radiolysis of 0.05 M neutral proline solution was investigated. As the main reaction of proline radiolysis in oxygenated solutions, the hydroxylation reactions leading to hydroxyproline formation and the reactions leading to the total destruction of the pyrrolidine ring were shown. In oxygen-free solutions the yield of these reactions decreased; in this medium combination reactions giving...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1964
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.37.928