气相色谱法测定水产品中的氟乐灵  

Determination of Trifluralin Residues in Aquatic Products by Gas Chromatography

作　　者：刘慧慧[1,2] 任传博 宫向红[1,2] 徐英江[1,2] 邓旭修 张华威 田秀慧[1,2] 张秀珍[1,2] 

机构地区：[1]山东省海洋水产研究所,山东烟台264006 [2]山东省海洋生态修复重点实验室,山东烟台264006 [3]烟台山水海产有限公司,山东烟台264006

出　　处：《食品科学》2012年第22期214-216,共3页Food Science

基　　金：海洋公益性行业科研专项(200805031);新型持久性有机污染物监测与风险评估体系研究示范项目(201105013);基于生态系统的典型海域生物资源综合修复与调控技术研究及示范项目(200905019)

摘　　要：建立水产品中氟乐灵残留量的气相色谱检测方法。水产品均质后,用丙酮提取,经正己烷液液萃取,弗罗里硅土固相萃取柱净化后,用气相色谱仪进行测定,外标法定量。该方法在0.5～100ng/mL质量浓度范围内,线性良好,定量限为1.0ng/g。分别在鳗鲡、三疣梭子蟹、文蛤、中国对虾和鲫鱼5种水产品中添加1～10ng/g氟乐灵,回收率在74.8%～99.7%之间。该方法操作简单、灵敏、准确,可以满足水产品中氟乐灵检测要求。A gas chromatography（GC） method was established for determining trifluralin residues in aquatic products in this study.The sample preparation procedure involved homogenization,acetone extraction,n-hexane partition（liquid-liquid extraction） and cleanup on a Florisil solid-phase extraction column before GC analysis.The quantification was performed by external standard method.The GC method showed good linear relationship over the concentration range of 0.5–100 ng/mL.The limit of quantification was 1.0 ng/g.The recovery rates of trifluralin from eel,crab,clams,crucian and shrimp when spiked at 1.0,2.0 ng/g and 10.0 ng/g were 74.8%–99.7%,respectively.This method was simple,sensitive and accurate,and therefore could meet the requirements for the determination of trifluralin residues in aquatic products.

关 键 词：气相色谱 水产品 氟乐灵 

分 类 号：O657.63[理学—分析化学]