Charge Remote Fragmentation of Fatty Acid Anions in 400 eV Collisions with Xenon Atoms
✍ Scribed by William J. Griffiths; Yang Yang; Jan Åke Lindgren; Jan Sjövall
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 742 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0951-4198
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✦ Synopsis
In an effort to assess the performance of a new commercial hybrid magnetic sector-time-of-flight tandem mass spectrometer for the structural analysis of fatty acids, collision-induced dissociation spectra of stearic, oleic, linoleic and arachidonic acids have been recorded. Pseudomolecular [M -HIparent ions were generated by electrospray ionization, accelerated to 4 keV, selected by the double focussing sectors of the tandem mass spectrometer, decelerated to 400 eV and focused into a collision cell containing xenon. The resulting fragment ions were mass analysed by an orthogonal time-of-flight analyser. The CJD spectra showed charge-remote fragmentation patterns, from which the location of double bonds could be determined.