Electron-Impact-Induced Fragmentation of a Glutamine Molecule
- Authors: Papp A.V.1, Vukstich V.S.1, Romanova L.G.1, Snegurskaya T.A.2, Megela I.G.1, Snegursky A.V.1
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Affiliations:
- Institute of Electron Physics, National Academy of Sciences of Ukraine
- Uzhgorod National University
- Issue: Vol 45, No 10 (2019)
- Pages: 1054-1058
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208463
- DOI: https://doi.org/10.1134/S1063785019100274
- ID: 208463
Cite item
Abstract
The formation of ionized products upon single and dissociative ionization of a glutamine (C5H10N2O3) molecule by electron impact at low (70 eV) and high (11.5 MeV) energies has been studied by method of mass spectrometry. The mass spectra of glutamine molecules have been obtained upon electron irradiation to various doses (0, 5, 10, and 20 kGy) and for various threshold functions of ion fragment yield. The absolute values of ion fragment appearance energies are determined. Electron beams were generated by a three-electrode gun and electron accelerator (microtron). Comparative analysis of the measured mass spectra of unirradiated and irradiated glutamine molecules showed that high-energy irradiation produced irreversible changes in the molecular structure.
About the authors
A. V. Papp
Institute of Electron Physics, National Academy of Sciences of Ukraine
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88017
V. S. Vukstich
Institute of Electron Physics, National Academy of Sciences of Ukraine
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88017
L. G. Romanova
Institute of Electron Physics, National Academy of Sciences of Ukraine
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88017
T. A. Snegurskaya
Uzhgorod National University
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88000
I. G. Megela
Institute of Electron Physics, National Academy of Sciences of Ukraine
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88017
A. V. Snegursky
Institute of Electron Physics, National Academy of Sciences of Ukraine
Author for correspondence.
Email: snegursky.alex@gmail.com
Ukraine, Uzhgorod, 88017