摘要
使用气相色谱—质谱(GC-MS)联用技术对油脂中的脂肪酸进行检测,比较三种甲酯化方法,并对比了DB-5ms,VF-23ms两种毛细管色谱柱对37种脂肪酸甲酯的分离效果。结果表明VF-23 ms色谱柱具有更好的分离效果,4%盐酸甲醇法具有最好的甲酯化效果。研究为油脂中脂肪酸的气相色谱—质谱检测提供了依据。
Fatty acids in oils were detected by GC - MS. Three methylation methods were compared. The separation effects of DB - 5ms and VF -23ms capillary column on 37 mixed fatty acid methyl esters were compared. The results showed that the VF- 23ms column had a better separation effect. 4% hydrochloric acid methanol method has the best effect of methyl esterification. The research provided a reference for de- tection of fatty acids in oils by GC -MS.
出处
《粮油食品科技》
北大核心
2013年第4期74-77,共4页
Science and Technology of Cereals,Oils and Foods
基金
国家"十二五"科技重点项目(2012BAD33B02)
天津市科技支撑项目(12ZCZDNC01300)
关键词
气相色谱-质谱
油脂
脂肪酸
毛细管色谱柱
甲酯化
Key words： gas chromatography - mass spectrometry （ GC - MS）
oil
fatty acid
capillary chromatograph-ic column
methyl esterification
