Journal of Lipid Research, Vol 23, 363-366, Copyright © 1982 by Lipid Research, Inc.
Measurement of eicosapolyenoic acids in the serum by gas-liquid chromatography-chemical ionization mass spectrometry
M Suzuki, M Nishizawa, T Miyatake and Y Kagawa
The use of octadeutero eicosatetraenoic acid as an internal standard for
the reproducible measurement of serum eicosapolyenoic acids (C20:3, C20:4,
and C20:5) by gas-liquid chromatography-chemical ionization mass
spectrometry is described. The method has the following advantages. The
physicochemical properties of the internal standard and the eicosapolyenoic
acids are similar. The acids are easily separated from compounds of similar
retention times by means of selected ion monitoring. The measurements can
be made more rapidly, (10 min per sample) than with previous techniques.