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气相色谱-质谱联用检测进出口水产品中氟乐灵残留
引用本文:李晓玉,付建,隋涛,曹鹏,池连学,娄喜山. 气相色谱-质谱联用检测进出口水产品中氟乐灵残留[J]. 食品科学, 2011, 32(16): 315-317. DOI: 10.7506/spkx1002-6630-201116068
作者姓名:李晓玉  付建  隋涛  曹鹏  池连学  娄喜山
作者单位:1. 烟台出入境检验检疫局2.烟台杰科检测服务有限公司3.山东农业大学食品科学与工程学院
摘    要:采用液液萃取的前处理方式,以气相色谱-质谱联用仪(gas chromatography- mass spectrometry,GC-MS)检测水产品中氟乐灵的残留量。水产品经过匀质,丙酮提取,正己烷进行液液分配,弗罗里硅土柱净化后,用气相色谱-质谱联用仪进行测定和确认,外标法定量。该方法在5~100μg/L质量浓度范围内,相关系数R2为0.99996,具有良好的线性关系,检测限均为1.0μg/kg。分别在鳗鱼、梭子蟹、黄花鱼、印度虾和蛤蜊5种水产品中添加1~4μg/L氟乐灵,回收率在82.0%~93.6%之间。该方法操作简单、灵敏度高,可以满足水产品中氟乐灵的定性定量检测要求。

关 键 词:气相色谱-质谱法(GC-MS)  水产品  氟乐灵  
收稿时间:2018-05-21

Determination of Trifluralin Residues in Imported and Exported Aquatic Products by Gas Chromatography-Mass Spectrometry
LI Xiao-yu,FU Jian,SUI Tao,CAO Peng,,CHI Lian-xue,LOU Xi-shan. Determination of Trifluralin Residues in Imported and Exported Aquatic Products by Gas Chromatography-Mass Spectrometry[J]. Food Science, 2011, 32(16): 315-317. DOI: 10.7506/spkx1002-6630-201116068
Authors:LI Xiao-yu  FU Jian  SUI Tao  CAO Peng    CHI Lian-xue  LOU Xi-shan
Affiliation:(1. Yantai Entry-Exit Inspection and Quarantine Bureau, Yantai 264000, China;2. Yantai Jieke Inspection Service Co. Ltd., Yantai 265231, China;3. College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China)
Abstract:A gas chromatography-mass spectrometry (GC-MS) method is presented for determining trifluralin residues in aquatic products in this paper. In the method, extraction with acetone, partition with n-hexane and cleanup on a Florisil solid-phase extraction column were used for sample preparation, and quantification was performed by the external standard method. Trifluralin concentration exhibited a good linearity over the range of 5-100μg/L, with a correlation coefficient of 0.99996. The detection limit of this method was 1.0μg/kg for trifluralin. The recovery rates of trifluralin in eel, corvine, India shrimp, clams and swimming crab across the spike levels of 1.0, 2.0μg/kg and 4.0μg/kg were 82.0%-93.6%. This simple and sensitive method can be applied for the determination of trifluralin residues in aquatic products.
Keywords:gas chromatography-mass spectrometry(GC-MS)  aquatic product  trifluralin  
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