Low temperature purification method for the determination of abamectin and ivermectin in edible oils by liquid chromatography-tandem mass spectrometry

文献类型： 外文期刊

第一作者： Huang, Jian-Xiang

作者： Huang, Jian-Xiang;Lu, Da-Hai;Wan, Kai;Wang, Fu-Hua

作者机构：

关键词： Low temperature purification;Abamectin;Ivermectin;Edible oil;Liquid chromatography-tandem mass;spectrometry

期刊名称：CHINESE CHEMICAL LETTERS （ 影响因子：6.779； 五年影响因子：4.558 ）

ISSN： 1001-8417

年卷期： 2014 年 25 卷 4 期

页码：

收录情况： SCI

摘要： In this study, a method based on low temperature purification (LTP) coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for the determination of abamectin (ABA) and ivermectin (IVR) in edible oils. ABA and IVR were extracted using conventional liquid-liquid extraction followed by purification via precipitation of interfering fatty components at low temperature without an additional cleanup step. LTP is simple, easy to use, labour-saving and cost effective, and requires reduced amounts of organic solvent. The linear ranges of ABA and IVR were 51000 mu g/L using matrix-matched standards. Limits of detection (LOD) and limits of quantification (LOQ) were in the range of 0.1-0.41.14/kg and 0.3-1.3.,mu g/kg, respectively. The LOQs were below the strictest maximum residue limits established by Codex Alimentarius Commission. Recoveries at three spiked levels of 10,20 and 100 mu g/kg in peanut oil, corn oil, olive oil, soybean oil and lard ranged from 71.1% to 119.3% with relative standard deviations of 3.2%-10.3%, which were in agreement with those obtained by the solid phase extraction method. The proposed method was utilized in the analysis of 10 edible oil samples from local market and neither ABA nor IVR was detected. As far as we know, this is the first time that LTP is applied to the determination of avermectins in edible oils. (C) 2014 Fu-Hua Wang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

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