食品科学 ›› 2001, Vol. 22 ›› Issue (10): 76-78.

• 分析检测 • 上一篇    下一篇

鱼油制品中EPA/DHA检测方法的研究

 牟峻,  曲忠文   

  1. 吉林出入境检验检疫局
  • 出版日期:2001-10-15 发布日期:2012-02-15

Method Study on Assaying EPA/DHA in Fish Oil and its Products

 MOU  Jun,   Qu-Zhong-Wen   

  • Online:2001-10-15 Published:2012-02-15

摘要: 应用气相色谱-质谱法测定及确证鱼油制品中二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)。试样采用正己烷提取,以氢氧化钾/甲醇法酯交换反应甲酯化,DB-17毛细管柱气相色谱-质谱法测定及确证,归一化法定量。添加回收率为93.3%~102.1%,变异系数2.83%~3.42%。该方法简便、快速,定性和定量准确。用于实际样品的测定取得了满意的结果。

关键词: 二十碳五烯酸(EPA), 二十二碳六烯酸(DHA), 鱼油制品, 气相色谱-质谱法

Abstract: A method for determination of eicosaqpentaenoic acid and docosahexaenoic acid in fish oil and its products by gas chromatography/mass spectrometry was developed.The sample was first extracted by n-hexane,then the fatty acid was methylated with potassium hydroxide-methanol(KOH-MeOH).The obtained fatty acid methyl esters were determined and confirmed by gas chromatograph equipped with MSD on DB-17 fused silica capillary column(30m×0.25mm×0.10μm),using normal method.The recovery was from 93.3% to 102.1% CV(n=10) was from 2.83% to 3.42%.The method was simple,rapid,accruate and applicable to determine practical samples with satisfactory results.

Key words:  , Eeicosapentaenoic acid(EPA) Docosahexaenoic acid(DHA) Fish oil and its products Gas chromatography/mass spectrometry;