CAJ | 학술논문

建立了分析油脂样品中37种脂肪酸含量的气相色谱-质谱检测方法,通过对100多种植物油和20多种地沟油的37种脂肪酸含量的分析,总结出了根据37种脂肪酸含量鉴别地沟油的判定依据。低碳数饱和脂肪酸是地沟油与植物油差异较大的组分,但是应用气相色谱方法测定时无法对其进行准确的定性定量,从而无法根据低碳数饱和脂肪酸的组成进行是否地沟油判定。应用气相色谱-质谱方法,提高了方法的灵敏度,完善了根据脂肪酸组成判定地沟油的依据。应用该判定依据,对卫生部两次盲样进行判定,阳性准确率分别为100%和95%,阴性准确率分别为100%和90%,表明该判定依据是一种有效且准确率较高的鉴别地沟油的方法。
건립료분석유지양품중37충지방산함량적기상색보-질보검측방법,통과대100다충식물유화20다충지구유적37충지방산함량적분석,총결출료근거37충지방산함량감별지구유적판정의거。저탄수포화지방산시지구유여식물유차이교대적조분,단시응용기상색보방법측정시무법대기진행준학적정성정량,종이무법근거저탄수포화지방산적조성진행시부지구유판정。응용기상색보-질보방법,제고료방법적령민도,완선료근거지방산조성판정지구유적의거。응용해판정의거,대위생부량차맹양진행판정,양성준학솔분별위100%화95%,음성준학솔분별위100%화90%,표명해판정의거시일충유효차준학솔교고적감별지구유적방법。
A gas chromatography-mass spectrometry method was established to analyze the contents of 37 fatty acids in more than 100 vegetable oils and 20 hogwash oils.The criterion of hogwash oil was made in accordance with the content of 37 fatty acids.Low carbon number of saturated fatty acids is of significant difference between hogwash oil and vegetable oils.However,when analyzing by gas chromatography with FID detector,the sensitivity is too lower to be differentiated.By using gas chromatography-mass spectrometry,the sensitivity and the criterion for hogwash oil were improved.According to the new criterion for hogwash oil,the both two blind tests were of more than 90% accuracy.And it is showed that it is an effective and high accurate method.