| 液相色谱-电喷雾串联质谱法测定豇豆中的水胺硫磷 |
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| 引用本文： | 邹树丹,黄金凤,罗东辉,罗海英,陈立伟,吴玉銮. 液相色谱-电喷雾串联质谱法测定豇豆中的水胺硫磷[J]. 现代食品科技, 2012, 28(4): 473-475 |
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| 作者姓名： | 邹树丹 黄金凤 罗东辉 罗海英 陈立伟 吴玉銮 |
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| 作者单位： | 广州市质量监督检测研究院,国家加工食品质量监督检验中心(广州)广州市食品安全检测技术重点实验室,广州市食品安全风险动态监测与预警研究中心,广东广州510110 |
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| 基金项目： | 国家质检总局科技计划项目，广州市科技计划项目(广州市食品安全检测技术重点实验室) |
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| 摘 要： | 建立了豇豆中水胺硫磷的液相色谱-电喷雾串联质谱分析方法。样品经乙腈超声提取后进行液相色-电喷雾串联质谱分析。方法检出限为0.1μg/kg(S/N=3)。空白样本添加水平在0.1、1.0、5.0μg/kg时,平均回收率为80.1~87.9%,相对偏差(n=6)为6.7~8.1%。使用MRM-IDA-EPI的模式,一次进样可得到MRM色谱图及MS2质谱图。该方法具有前处理简单、回收率高、精密度好,选择性强,灵敏度高的优点,符合农药残留的分析要求。
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| 关 键 词： | 水胺硫磷 分析 残留 质谱 豇豆 |
| 收稿时间： | 2011-12-10 |
Determination of Isocarbophos in Cowpea by LC/MS/MS with MRM-IDA-EPI |
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| ZOU Shu-dan,HUANG Jin-feng,LUO Dong-hui,LUO Hai-ying,CHEN Li-wei and WU Yu-luan. Determination of Isocarbophos in Cowpea by LC/MS/MS with MRM-IDA-EPI[J]. Modern Food Science & Technology, 2012, 28(4): 473-475 |
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| Authors: | ZOU Shu-dan HUANG Jin-feng LUO Dong-hui LUO Hai-ying CHEN Li-wei WU Yu-luan |
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| Affiliation: | (Guangzhou Quality Supervision and Testing Institute,National Centre for Quality Supervision and Testing of Processed Food(Guangzhou),Guangzhou City Key Laboratory of Detection Technology for Food Safety,Guangzhou City Research Center of Risk Dynamic Detection and Early Warning for Food Safety,Guangzhou Guangdong 510110,China) |
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| Abstract: | An analytical method for the determination of isocarbophos residues in cowpea with HPLC/MS/MS was established.Samples were extracted by acetonitrile with sonic extracting and detected LC/MS/MS.The LODs(S/N=3) were 0.1 μg/kg.For spiking level at 0.1,1.0,and 5.0 μg/kg,the average recoveries were 80.1%~87.9% and RSD(n=6) values ranged from 6.7% to 8.1%.Using the MRM-IDA-EPI model,MRM chromatograms and the MS2 mass spectrum of the samples can be obtained by only one single injection.The method was simple,precise and had high recoveries,which can meet the requirement for residues analysis. |
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| Keywords: | isocarbophos analyst residue MS cowpea |
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