Mass Spectrometry of the Xylitol Molecule
| Autor: | O. B. Shpenik, A. N. Zavilopulo, O. V. Pilipchinets |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
0301 basic medicine Materials science Physics and Astronomy (miscellaneous) Analytical chemistry Xylitol Mass spectrometry 01 natural sciences Ion 03 medical and health sciences chemistry.chemical_compound 030104 developmental biology chemistry Ionization 0103 physical sciences Mass spectrum Molecule Ionization energy Electron ionization |
| Zdroj: | Technical Physics Letters. 44:358-361 |
| ISSN: | 1090-6533 1063-7850 |
| DOI: | 10.1134/s1063785018040272 |
| Popis: | We describe a method and presents results of a mass-spectrometric investigation of the yield of positive ions formed as a result of the direct and dissociative ionization of xylitol molecules by electron impact. The mass spectra of xylitol in a range of ion mass numbers within 1–170 Da and electron impact energies 5–80 eV were measured at various temperatures. The ionization energy of xylitol and the appearance energies of related fragment ions were determined for the first time from energy dependences of the effective electron-impact ionization cross sections. The dynamics of formation of the molecular-fragment ions of xylitol by electron impact was studied in the interval of sample evaporation temperatures within 340–400 K. |
| Databáze: | OpenAIRE |
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