gas chromatography–flame ionization detection
was developed and optimized for direct determination of
propanal, butanal, hexanal and heptanal in soybean, sunflower
and olive oils. In this method sample preparation time as well as
the consumption of the toxic organic solvent were minimized
without affecting the sensitivity of the method. The results from
validation indicate the proposed method can be successfully
applied for the determination of propanal, butanal, hexanal and
heptanal in heated vegetable oil samples.