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Abstract ▼ AI-Helper

Through an experiment with gas chromatography carried out using diethylene glycol succinate(DEGS) as the packing material of the column, we have obtained the correction factor between the weight ratio and the peak dimension of the saturated fatty acid methyl esters of C10, C12, C14, C16, and C18 and...

Through an experiment with gas chromatography carried out using diethylene glycol succinate(DEGS) as the packing material of the column, we have obtained the correction factor between the weight ratio and the peak dimension of the saturated fatty acid methyl esters of C10, C12, C14, C16, and C18 and unsaturated fatty acid methyl esters of oleic acid, linoloic acid, and linolenic acid, employing the detector of thermal conductivity type. Quantitative analysis of the fatty acids contained in rice Bran oil was performed with the above correction factor and the results are as follows; 1. Main components were found to be palmitic acid, oleic acid sand linolenic acid. No trases of capric acid (C10) lauric acid (C10) were found. 2. It was confirmed that there were straight line relation between the logarism retention time of each fatty acid and the number of carbon of saturated fatty acid or the number of double bond of other fatty acids having the same number of carbon. 3. The correction factor became larger as to the number of carbon increased up to C18 in case of saturated fatty acids, end as for other fatty acids, and as for other fatty acids of the same carbon number, it became larger according as the number of double bond increased.