Detection of Benzo[a]pyrene in Fried Food by Ultrasound-Assisted Matrix Solid-Phase Dispersion and Isotope Dilution GC-MS
文献类型: 外文期刊
第一作者: Liu, Hongcheng
作者: Liu, Hongcheng;Shao, Jinliang;Lin, Tao;Li, Qiwan
作者机构:
关键词: GC-MS;Ultrasound-assisted matrix solid-phase dispersion;Benzo[a]pyrene;Fried food
期刊名称:CHROMATOGRAPHIA ( 影响因子:2.044; 五年影响因子:1.725 )
ISSN: 0009-5893
年卷期: 2013 年 76 卷 23-24 期
页码:
收录情况: SCI
摘要: A simple, sensitive and reliable analytical method was developed for the detection of benzo[a]pyrene in fried food using gas chromatography-mass spectrometry with an isotope-labelled internal standard. Samples were directly extracted and purified by the ultrasound-assisted matrix solid-phase dispersion (MSPD) procedure. The simple pretreatment procedures were tested with different absorbents (C18, NH2, Oasis, and SiO2). The optimal ultrasonication-assisted MSPD was achieved by MSPD-SiO2 and sonication for 10 min in an ultrasonic bath. The samples were quantified using benzo[a]pyrene-d(12) as the internal standard. An analysis of the samples spiked with different levels of benzo[a]pyrene showed recoveries ranging from 84.6 to 103.2 %, with an RSD of 3.21-8.32 %, depending on the spiking level. This method was thus shown to be suitable for the detection of benzo[a]pyrene in fried food.
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