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Mass Spectrometry of Fatty Acid Derivatives

These pages are tutorials that deal with the application of mass spectrometry (MS) with electron-impact ionization and linked to gas chromatography (GC) for the determination of the structures of fatty acids. Although methyl esters are used almost universally for GC separations and often for MS, they afford limited structural information only. On the other hand, certain nitrogen-containing derivatives, especially pyrrolidides, 4,4-dimethyloxazoline (DMOX) derivatives and 3-pyridylcarbinol ('picolinyl') esters, give much more specific data as discussed in the attached web pages in which more than 735 mass spectra are illustrated (not counting the Archive sections with these and a further 1350 spectra). Spectra of some selected other lipids are also discussed. As new information becomes available, these web pages are updated.

Recommended Book: Christie, W.W. and Han, X. Lipid Analysis - Isolation, Separation, Identification and Lipidomic Analysis (4th edition), 446 pages (Oily Press, Woodhead Publishing and now Elsevier) (2010) - at Science Direct.

Credits/disclaimer Updated: July 14th, 2017 Author: William W. Christie LipidWeb icon