食品科学 ›› 2011, Vol. 32 ›› Issue (16): 224-228.doi: 10.7506/spkx1002-6630-201116047

• 分析检测 • 上一篇    下一篇

气相色谱-质谱法测定食品基质中四聚乙醛残留量

李晓娟1,2,彭 涛1,贾 然2,陈冬东1,代汉慧1   

  1. 1. 中国检验检疫科学研究院
    2.中国农业大学理学院
  • 出版日期:2011-08-25 发布日期:2011-07-26
  • 基金资助:
    中国检科院基本科研业务费专项(2008JK003);国家质检总局科技计划项目(2009IK319)

Determination of Metaldehyde Residue in Foodstuffs by GC-MS

LI Xiao-juan1,2,PENG Tao1,JIA Ran2,CHEN Dong-dong1,DAI Han-hui1   

  1. (1. Chinese Academy of Inspection and Quarantine, Beijing 100123, China; 2. College of Science, China Agricultural University, Beijing 100193, China)
  • Online:2011-08-25 Published:2011-07-26

摘要: 建立气相色谱-质谱法测定食品基质中四聚乙醛残留量。采用二氯甲烷-丙酮混合溶剂提取,石墨化炭黑/氨基复合固相萃取柱净化,气相色谱-质谱法检测大米、大豆、菠菜、番茄、洋葱、茶叶、苹果、板栗等多种植物源食品基质中四聚乙醛残留的方法。结果表明,该方法定量限为0.01mg/kg,在添加0.01~0.5mg/kg范围内,加标回收率为70.5%~111.7%,相对标准偏差为4.4%~11%。

关键词: 四聚乙醛, 植物源食品, 残留, 气相色谱-质谱

Abstract: A gas chromatography-mass spectrometry (GC-MS) method was developed for determining metaldehyde residue in various food matrixes including rice, soybean, spinach, tomato, onion, tea, apple and Chinese chestnut. Metaldehyde residue in samples was extracted with acetone-methylene mixture, and then the extracts were purified with LC-NH2/Envi-carb solid phase extraction (SPE) cartridge. The limit of quantification (LOD) of the developed method was 0.01 mg/kg, and the average recoveries and relative standard deviation (RSD) for metaldehyde in samples spiked in the range of 0.01 to 0.5 mg/kg were in the range of 70.5%-111.7% and 4.4%-11.0%, respectively.

Key words: metaldehyde, plant-derived food, residue, gas chromatography-mass spectrometry (GC-MS)

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