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%。
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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第16期224-228,共5页
Food Science
基金
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)
关键词
四聚乙醛
植物源食品
残留
气相色谱-质谱
metaldehyde
plant-derived food
residue
gas chromatography-mass spectrometry（GC-MS）
作者简介
李晓娟（1978-），女，助理研究员，硕士研究生，研究方向为食品安全。E-mail：lixiaojuan2003@163.com
