Determination of Indoxacarb Residue in Foodstuffs of Plant and Animal Origin by GC-ECD and LC-MS/MS

XU Dun-ming; YANG Fang; LU Sheng-yu; LAN Jin-chang; YU Kong-jie; CAI Chun-ping; LIU Xian-jin

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Determination of Indoxacarb Residue in Foodstuffs of Plant and Animal Origin by GC-ECD and LC-MS/MS

机译：GC-ECD和LC-MS / MS测定动植物来源食品中的茚虫威残留量

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An effective method for the trace analysis of indoxacarb residue in foodstuffs of plant and animal origin [grapefruit, ginger, fresh soybean, bamboo shoot, qing-gen-cai (cruciferous vegetable), chicken, fish, and pork] was developed using gas chromatography (GC-ECD) and liquid chromatography tandem mass spectrometry (LC-MS/MS). Samples were extracted using acetone and n-hexane mixed solvent (1:2, v/v) and then purified using solid-phase extraction (SPE) columns. The extracts were analyzed using GC-ECD and LC-MS/MS. The multiple reaction monitoring (MRM) scheme used involved transitions of the precursor ions to selected two product ions in which one pair for identification was m/z 529→293 and another pair for quantification was m/z 529→249. The detection limits (LODs) of the method were 0.0015 and 0.0006 mg kg-1, and the quantification limits (LOQs) were 0.005 and 0.002 mg kg-1 for GC-ECD and LC-MS/MS, respectively. The relative standard deviations (RSDs) of recovery for indoxacarb were lower than 15% in 10 types of agro-products. Ten repetitive determinations of recovery achieved good reproducibility for indoxacarb and the recovery ranged from 72.08 to 113.74%. The proposed procedure was applied to the analysis of several real samples of different origin from Fujian Province, China, and 299 samples were screened for indoxacarb residue, of which 5 positive samples were found.

机译：采用气相色谱，开发了一种有效的植物和动物来源食品中吲哚卡马拉残留物追踪吲哚羚属残余物[葡萄柚，姜，新鲜大豆，鸡肉，鱼类和猪肉] （GC-ECD）和液相色谱串联质谱（LC-MS / MS）。使用丙酮和正己烷混合溶剂（1：2，V / V）萃取样品，然后使用固相萃取（SPE）柱纯化。使用GC-ECD和LC-MS / MS分析提取物。使用的多反应监测（MRM）方案涉及前体离子的转变为选择的两种产物离子，其中一对用于鉴定为M / Z 529→293，另一对进行定量为M / Z 529→249。该方法的检测限制（LOD）为0.0015且0.0006mg kg-1，分别为GC-ECD和LC-MS / MS为0.005和0.002mg KG-1。吲哚卡马拉的相对标准偏差（RSD）的回收率低于10种类型的农业产品中的15％。对茚满族的10重复测定达到了较好的茚满族幼虫再现性，恢复范围为72.08至113.74％。拟议的程序适用于分析福建省，中国不同起源的几个真正样本，并针对吲哚羚属残留物筛选了299个样品，其中发现了5个阳性样品。

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《农业科学学报（英文版）》 |2008年第10期|1228-1234|共7页
作者
XU Dun-ming; YANG Fang; LU Sheng-yu; LAN Jin-chang; YU Kong-jie; CAI Chun-ping; LIU Xian-jin;
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Institute of Food Safety Research and Service, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Fujian Entry-Exit Inspection and Quarantine Bureau, Fuihou 350001, P.R.China;

Institute of Food Safety Research and Service, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P.R.China;

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正文语种 chi
中图分类园艺;
关键词
indoxacarb; residue; GC; LC-MS/MS; plant and animal origin; foodstuff;

机译：茚虫威;残留;GC;LC-MS / MS;动植物来源;食品;

Determination of Indoxacarb Residue in Foodstuffs of Plant and Animal Origin by GC-ECD and LC-MS/MS

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