食品科学 ›› 2014, Vol. 35 ›› Issue (6): 94-97.doi: 10.7506/spkx1002-6630-201406019

• 分析检测 • 上一篇    下一篇

气相色谱-质谱联用法测定香肠中三种单甘油酯

贾海涛,马育松,陈瑞春   

  1. 河北出入境检验检疫局,河北 石家庄 050051
  • 收稿日期:2013-05-06 修回日期:2014-02-12 出版日期:2014-03-25 发布日期:2014-04-04
  • 通讯作者: 贾海涛 E-mail:ciq_jiahait@sina.com
  • 基金资助:

    国家标准化管理委员会资助项目(2009B52)

Determination of Three Monoglycerates in Sausage by Gas Chromatography-Mass Spectrometry

JIA Hai-tao, MA Yu-song, CHEN Rui-chun   

  1. Hebei Entry-Exit Inspection and Quarantine Bureau, Shijiazhuang 050051, China
  • Received:2013-05-06 Revised:2014-02-12 Online:2014-03-25 Published:2014-04-04
  • Contact: JIA Hai-tao E-mail:ciq_jiahait@sina.com

摘要:

建立一种气相色谱-质谱联用检测香肠中3 种单甘油酯含量的方法。3 种单甘油酯分别为单辛酸甘油酯、单癸酸甘油酯和单月桂酸甘油脂。样品以二氯甲烷-正己烷(1∶1)提取,提取液经浓缩后,经凝胶渗透色谱净化,气相色谱-质谱联用检测和确证,外标法定量。本方法测定低限为50 mg/kg。3 种单甘油酯在20~1 000 μg/mL范围呈良好线性,线性相关系数不小于0.999 6。回收率范围在81.3%~105%,测定结果的相对标准偏差(n=8)为3.64%~8.56%。该方法具有快速、简便、准确度高、精密度高的特点,适用于香肠中3 种单甘油酯的测定。

关键词: 气相色谱-质谱联用, 香肠, 单甘油酯

Abstract:

A method for the determination of three monoglycerate, mono-glycerate glycerate monocaprylin, glyceryl
monodecanoate and glyceryl monolaurate, in sausage by GC-MS was established. Samples were extracted with
dichloromethane-n-hexane (1:1), and the extract was concentrated, purified by gel permeation chromatography (GPC), and
detected and confirmed by GC-MS. The quantitative analysis was conducted by using an external standard method. The limit
of quantification was 50 mg/kg. Satisfactory linearity was observed with a correlation coefficient of no less than 0.999 6 in
the concentration range of 20?1 000 μg/mL. Spiked recoveries were in the range of 81.3%?105% with RSD of 3.64%?8.56%
(n = 8). The method is rapid, convenient, accurate and precise, which can be applied to determine monoglycerate in sausage.

Key words: gas chromatography-mass spectrometry (GC-MS), sausage, monoglycerate

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