Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedade Brasileira de Física
2005
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=46435605 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Photoabsorption and Photoionization Studies of the Amino Acid Proline in the VUV Region L. H. Coutinho M. G. P. Homem R. L. Cavasso-Filho R. R. T. Marinho A. F. Lago A. Naves de Brito G. G. B. de Souza Física, Astronomía y Matemáticas Ionic fragmentation of the sublimated amino acid DL-proline has been studied using time-of-flight massspectrometry and synchrotron radiation. Total ion yield and mass spectra were recorded in the 13 to 21.6 eVenergy range. Partial ion yields have been calculated for the produced fragments and the results analyzed in acomparative way. Mass spectrum of proline previously obtained at 21.21 eV using photons from a dischargelamp (He I), was used as reference in the comparison to the synchrotron radiation based spectra. The loss ofthe COOH fragment represents the most probable dissociation pathway following the photoionization of DLprolinein the valence region. These are the first results of total and partial ion yields spectra for this moleculein its gas phase in the valence region using time-of-flight spectrometry. 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435605 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4A Vol.35