食品科学 ›› 2012, Vol. 33 ›› Issue (18): 246-249.

• 分析检测 • 上一篇    下一篇

气相色谱-质谱法对食用油中17种邻苯二甲酸酯的测定

王鹏功,高明星*,程 刚,马绪丽,刘润珠,李 璐   

  1. 中国检验认证集团山东检测有限公司
  • 收稿日期:2011-08-24 修回日期:2012-07-24 出版日期:2012-09-25 发布日期:2012-09-07
  • 通讯作者: 高明星 E-mail:mingxinggao@126.com

Determination of 17 Phthalates in Edible Oil by Gas Chromatography-Mass Spectrometry

Ming-Xing ZHANG   

  • Received:2011-08-24 Revised:2012-07-24 Online:2012-09-25 Published:2012-09-07
  • Contact: Ming-Xing ZHANG E-mail:mingxinggao@126.com

摘要: 采用乙腈液-液萃取法对邻苯二甲酸酯类物质进行提取,通过弗洛里硅土固相萃取柱去除样品杂质,经旋转蒸干后定容,选择气相色谱-质谱联用技术进行测试,建立食用油中17种邻苯二甲酸酯的检测方法。该方法操作简单、准确可靠、重现性良好,各种邻苯二甲酸酯化合物的方法检出限为20~60μg/L,加标回收率为83.20%~102.09%,相对标准偏差为2.73%~5.77%,能够满足食用油中邻苯二甲酸酯类化合物含量的测定。

关键词: 气相色谱-质谱, 食用油, 邻苯二甲酸酯, 测定

Abstract: An analytical method to determine 17 phthalates in edible oil was presented using liquid-liquid extraction and gas chromatography-mass spectrometry (GC-MS). The sample pretreatment before GC-MS analysis was achieved by liquid-liquid extraction with acetonitrile, removal of unwanted impurities using a Florian silica solid phase column, rotary evaporation until dryness, re-dissolution. The presented method was simple, accurate, reliable and reproducible. The limits of detection of this method for 17 phthalates tested were in the range of 20-60 μg/L. The average spike recovery rates of these phthalates from blank edible oil samples varied from 83.20% to 102.09% with relative standard deviation of 2.73%-5.77%. This method could meet the requirements for the determination of phthalates in edible oil.

Key words: gas chromatography-mass spectrometry (GC-MS), edible oil, phthalate acid esters, determination

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