| 液相色谱-电喷雾电离三级四极杆质谱法测定茶叶中6种烟碱类农药残留 |
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| 引用本文： | 谢文,钱艳,丁慧瑛,陈笑梅,奚君阳,蒋晓英.液相色谱-电喷雾电离三级四极杆质谱法测定茶叶中6种烟碱类农药残留[J].分析化学,2009,37(4). |
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| 作者姓名： | 谢文 钱艳 丁慧瑛 陈笑梅 奚君阳 蒋晓英 |
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| 作者单位： | 1. 浙江出入境检验检疫局技术中心,杭州,310012
2. 浙江立德产品技术有限公司,杭州,310012 |
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| 摘 要： | 应用液相色谱-电喷雾电离三级四极杆质谱(LC-ESI-MS/MS)方法测定茶叶中呋虫胺、噻虫嗪、噻虫胺、吡虫啉、啶虫咪和噻虫啉烟碱类农药残留.前处理方法包括添加同位素内标吡虫啉-D4,乙腈提取,再用活性碳和Oasis(HLB)固相小柱净化.该方法采用正离子方式,多反应监测每种烟碱类杀虫剂各两对离子进行定性、定量分析.方法在0.01～0.4 mg/kg范围内具有良好的线性关系.实验了3个添加水平0.02、0.04和0.2 mg/kg,回收率范围为80.1%～106.1%;相对标准偏差小于9.7%;方法检出限(LOQ)均为0.02 mg/kg.本方法简便、快速、准确,各项技术指标满足国内外法规的要求,可用于茶叶样品中烟碱类农药残留的确证检测.
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| 关 键 词： | 茶叶 液相色谱-电喷雾电离三级四极杆质谱法 烟碱 农药残留 |
Determination of Six Neonicotinoid Pesticides Residues in Tea Samples Using High Performance Liquid Chromatography Tandem Mass Spectrometry |
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| XIE Wen,QIAN Yan,DING Hui-Ying,CHEN Xiao-Mei,XI Jun-Yang,JIANG Xiao-Ying.Determination of Six Neonicotinoid Pesticides Residues in Tea Samples Using High Performance Liquid Chromatography Tandem Mass Spectrometry[J].Chinese Journal of Analytical Chemistry,2009,37(4). |
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| Authors: | XIE Wen QIAN Yan DING Hui-Ying CHEN Xiao-Mei XI Jun-Yang JIANG Xiao-Ying |
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| Institution: | Zhejiang Entry-Exit Inspection and Quarantine Bureau;Hangzhou 310012;Zhejiang Lead Product Technic Co;. Ltd.;Hangzhou 310012 |
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| Abstract: | A method for the determination of dinotefur,thiamethoxam,clothiandin,imidacloprid,acetamiprid and thiacloprid in tea samples was introducted. The isotope internal standard(imidcacloprid-D4) was added into the sample solutions. The sample was extracted with acetonitrile. Then it was cleaned up with active charcoal and Oasis(HLB) columns. The ionisation mode used was positive mode with multiple reaction monitoring. The one precursor/two product ion transitions were used for each neonicotinoids. The results sh... |
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| Keywords: | Tea high performance liquid chromatography tandem mass spectrometry neonicotinoid pesticides residues |
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