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Chemical ionization mass spectrometry of polyunsaturated fatty acids of human serum

✍ Scribed by Eiji Araki; Toshio Ariga; Takeshi Murata

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
369 KB
Volume
3
Category
Article
ISSN
1076-5174

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✦ Synopsis

Polyunsaturated fatty acids of human serum were analysed by combination gas-liquid chromatography and chemical ionization mass spectrometry, using isobutane as the reagent gas. The method described yielded the molecular ion of long chain unsaturated fatty acids as the base peak; these were weak or unobservable in the corresponding electron impact mass spectra. In the chemical ionization mass spectrometry, the derivatization with trimethylsilyl ether was demonstrated to be useful for the location of the double bonds of unsaturated fatty acids. Applied to the serum polyunsaturated fatty acids, these methods have given identification of CIS:,, c 2 0 4 , c22:4, C Z ~~J -~, C Z Z ~J T ~, and CZM.

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