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Spectrometria de masã diferenţialã. 3. Analiza diferenţialã a spectrelor de masã ale 2-,3- şi 4-nitrobenzofenonelor

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: N. Dincã, E. Sisu, I. Sisu, C. Csunderlik, I. Oprean

Editorial: Rev.Chim., 53(5), p.332-336, 2002.

Rezumat:

Electron impact mass spectra at 70 eV of 2-, 3- and 4-nitrobenzophenones are corrected by „ion dicrimination”, normalized using total ion current (TIC) and analysed by differential techniques. The new technique provides, by kinetic and thermodynamic interpretations of the fragmentation scheme associated with the relative intensities of the ions, the ascertaining of the nitro group position on the aromatic ring.

Cuvinte cheie: differential mass spectrometry (DifMS), GC-MS, electronic impact, mass spectra, position isomers, 2-nitrobenzophenone, 3-nitrobenzophenone, 4-nitrobenzophenone