Abstract: ¹H-NMR semi-quantitative determination of the edible oils was carried out with necessary adjustments of the partial peak integrations in order to correct the interference of the CCH₂C strong peak to the neighbouring weak ones. The amount of each functional group, ratio of quantities among various functional groups, esterification degree, unsaturation degree, average length of the saturated carbon chain, average carbon numbers in the combined fatty acids and average molecular weight per mole of oils were calculated.

Key words: ¹H-NMR, Edible oil, Semi-quantitative analysis