Electron impact mass spectrometry of [C7H8N]+ and [C6H7]+ and [C6H7]+ fragment ions produced fromo-toluidine andN-methylaniline

1992 ◽  
Vol 27 (8) ◽  
pp. 919-923 ◽  
Author(s):  
Ezzat T. M. Selim ◽  
M. A. Rabbih ◽  
M. A. Fahmey
Keyword(s):  
Mass Spectrometry ◽  
Electron Impact ◽  
Electron Impact Mass Spectrometry ◽  
Fragment Ions ◽  
Electron Impact Mass ◽  
Impact Mass

scholarly journals Electron-Impact Mass Spectrometry of PTCDA Molecules in the Gas Phase

2019 ◽  
Vol 64 (1) ◽  
pp. 3
Author(s):  
A. Zavilopulo ◽  
O. Shpenik
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Electron Impact ◽  
Cross Sections ◽  
Electron Impact Mass Spectrometry ◽  
Fragment Ions ◽  
Temperature Dependences ◽  
Complete Ionization ◽  
Electron Impact Mass ◽  
Impact Mass

The complete and dissociative ionizations of a 3,4,9,10-perylene-tetracarboxylic-dianhydride (C24H8O6, PTCDA) molecule in the gas phase have been studied, by using electron-impact mass spectrometry in an energy interval of 5–90 eV. The molecule is found to decay into the following fragment ions: the perylene core C20H8+ and its half C10H4+, as well as CO+, CO2+ , and O+ ions. The energy dependences of the cross-sections of the complete ionization of a PTCDA molecule and its fragment ions are analyzed. The energy of the complete ionization of a PTCDA molecule and the energies, at which its fragments appear, are determined. The temperature dependences of the formation of the most intensive fragment ions are measured, by using 80-eV electrons in a temperature interval of 320–500 K.

An unusual HgCl rearrangement in electron impact mass spectrometry of some halomercurioalkyl derivatives

1990 ◽  
Vol 27 (5) ◽  
pp. 1293-1295 ◽  
Author(s):  
Elena Ghezzo ◽  
Alberto Sturaro ◽  
Pietro Traldi ◽  
Pierfrancesco Bravo ◽  
Fiorenza Viani
Keyword(s):  
Mass Spectrometry ◽  
Electron Impact ◽  
Electron Impact Mass Spectrometry ◽  
Electron Impact Mass ◽  
Impact Mass

Electron impact mass spectrometry of hemiterpenoid tricyclic quinoline alkaloids

1987 ◽  
Vol 22 (7) ◽  
pp. 462-467 ◽  
Author(s):  
Alberto Sturaro ◽  
Pietro Traldi ◽  
Pierfrancesco Bravo ◽  
Fiorenza Viani ◽  
Giuseppe Resnati
Keyword(s):  
Mass Spectrometry ◽  
Electron Impact ◽  
Electron Impact Mass Spectrometry ◽  
Quinoline Alkaloids ◽  
Electron Impact Mass ◽  
Impact Mass
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