食品科学 ›› 2011, Vol. 32 ›› Issue (22): 156-162.doi: 10.7506/spkx1002-6630-201122032

• 分析检测 • 上一篇    下一篇

3种色谱柱对37种脂肪酸的分离性能比较及鱼油脂肪酸检测

陈小燕,王友升*,李丽萍   

  1. 北京工商大学 北京市食品风味化学重点实验室,食品添加剂与配料北京高校工程研究中心
  • 出版日期:2011-11-25 发布日期:2011-11-11
  • 基金资助:
    国家自然科学基金青年基金项目(30901009);背景市属高等学校人才强教计划项目(PHR20110882)

Comparison of Three Chromatographic Columns in Separation and Analysis of 37 Fatty Acids in Fish Oil

CHEN Xiao-yan WANG You-sheng* LI Li-ping   

  1. (Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Food Flavor Chemistry, Beijing Technology and Business University, Beijing 100048, China)
  • Online:2011-11-25 Published:2011-11-11

摘要: 利用气相色谱-质谱联用技术,考察HP-5、DB-Wax和SPB-50三种不同极性色谱柱对37种脂肪酸甲酯(fatty acid methy ester,FAME)混标的分离性能,并对实际鱼油样品的脂肪酸进行检测。结果表明:3种色谱柱都能用于FAME的分析,低碳数的物质最先出峰,同碳数而饱和度不同的FAME在不同固定相上的出峰顺序不同;与其他两种色谱柱相比,SPB-50柱能分离出顺式和反式异构体以及有效分离ω-3与ω-6系列脂肪酸,更适合检测复杂的FAME混合物样品,特别是对顺式和反式脂肪酸以及ω-3(如EPA和DHA)和ω-6等功能性脂肪酸的检测有重要意义。

关键词: 脂肪酸甲酯, HP-5柱, DB-Wax柱, SPB-50柱, 鱼油, 气相色谱-质谱联用

Abstract: The separation performance of columns with different polarities, including HP-5, DB-Wax and SPB-50 column, for 37 fatty acid methy esters (FAMEs) was comparedgas chromatography-mass spectrometry (GC-MS). The results showed that these columns allowed FAMEs separation. The peaks of FAMEs with less carbon atoms were separated earlier. FAMEs with the same number of carbon atoms and different degree of saturation were separated in different orders on the stationary phases. SPB-50 column could separate cis/trans, ω-3 and ω-6 fatty acids more sufficiently and may be a more suicolumn for complicated FAME sample analysis, especially for functional fatty acids.

Key words: fatty acid methy ester (FAME), HP-5 column, DB-Wax column, SPB-50 column, fish oil, gas chromatography-mass spectrometry (GC-MS)

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