GAS CHROMATOGRAPHY OF FREE FATTY ACIDS AFTER TREATMENT WITH IODINE AND IODINE TRICHLORIDE SOLUTION

概要

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A modified gas chromatographic procedure is described for the separation of mixtures of saturated and unsaturated higher fatty acids having the same carbon number. On a 2% 0V-17 column, the chromatogram of mixtures of stearic acid (18:0) and oleic acid (18:1) treated with iodine and iodine trichloride (I_2-ICl_3) in acetic acid at 20℃ for 1 h showed better separation than that of those non-treated acids. The reaction product of oleic acid and I_2-ICl_3 solution was identified as stearolic acid by gasliquid chromatography and mass spectrometry. The proposed method was also applied to the separation of palmitic (16:0) and palmitoleic acid (16:1).
社団法人日本分析化学会の論文
1982-02-05