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Position: Home > Articles > Determination of Metaldehyde Residue in Foodstuffs by GC-MS FOOD SCIENCE 2011,32 (16) 224-228

气相色谱-质谱法测定食品基质中四聚乙醛残留量

作  者:
李晓娟;彭涛;贾然;陈冬东;代汉慧
单  位:
中国检验检疫科学研究院;中国农业大学理学院
关键词:
四聚乙醛;植物源食品;残留;气相色谱-质谱
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%。
译  名:
Determination of Metaldehyde Residue in Foodstuffs by GC-MS
作  者:
LI Xiao-juan1,2,PENG Tao1,JIA Ran2,CHEN Dong-dong1,DAI Han-hui1(1.Chinese Academy of Inspection and Quarantine,Beijing 100123,China; 2.College of Science,China Agricultural University,Beijing 100193,China)
关键词:
metaldehyde;plant-derived food;residue;gas chromatography-mass spectrometry(GC-MS)
摘  要:
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.

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