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通过脂肪酸成分的差异区分不同种类的动物油,以四甲基氢氧化铵(TMAH)的甲醇液(体积比1:50)对动物油样品进行甲酯化衍生,利用全二维气相色谱-质谱法检验不同地区不同种类动物油的脂肪酸成分。结果表明,不同地区同一种类动物油的脂肪酸成分基本一致,不同种类动物油的脂肪酸成分差异明显,从而可对不同动物油进行区分。
Animal oil samples were subjected to methyl ester derivatization with methanolic solution of tetramethylammonium hydroxide (TMAH) (volume ratio 1:50) by the difference of the fatty acid components, and analyzed by full two-dimensional gas chromatography-mass spectrometry Different regions of different types of animal oils fatty acid composition. The results showed that the fatty acid composition of the same animal oil in different regions was basically the same, and the differences of fatty acid composition of different animal oils were obvious, which made it possible to distinguish different animal oils.