| 分散固相萃取净化液相色谱-质谱联用快速检测糙米中的多种残留农药 |
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| 引用本文： | 王素利,任丽萍,刘聪云,钱传范,江树人,刘丰茂.分散固相萃取净化液相色谱-质谱联用快速检测糙米中的多种残留农药[J].分析试验室,2009,28(4). |
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| 作者姓名： | 王素利 任丽萍 刘聪云 钱传范 江树人 刘丰茂 |
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| 作者单位： | 1. 中国农业大学理学院,北京,100094;河北北方学院农学基础部,张家口,075131
2. 中国农业大学理学院,北京,100094 |
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| 基金项目： | 948(2005-Z34)项目资助 |
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| 摘 要： | 建立了同时检测糙米中多种农药残留的分析方法.采用乙腈提取,使用N-丙基乙二胺键合固相吸附材料(PSA)和C18硅胶胶联吸附剂分散固相萃取(dispersive-SPE)净化,高效液相色谱-电喷雾串联质谱,正离子模式检测,内标法定量.30种农药在0.05～2mg/kg范围内线性良好,方法检出限和定量限分别为0.5～20 μg/kg和2～60 μg/kg,30种农药平均回收率在73%～109%之间,相对标准偏差<10%,均能够满足农药残留分析的要求.
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| 关 键 词： | 液相色谱-质谱 糙米 农药残留 分散固相萃取 |
Determination of pesticide residues in unpolished rice by high performance liquid chromatography-electrospray ionization mass spectrometry |
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| WANG Su-li,REN Li-ping,LIU Cong-yun,QIAN Chuan-fan,JIANG Shu-ren,LIU Feng-mao.Determination of pesticide residues in unpolished rice by high performance liquid chromatography-electrospray ionization mass spectrometry[J].Chinese Journal of Analysis Laboratory,2009,28(4). |
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| Authors: | WANG Su-li REN Li-ping LIU Cong-yun QIAN Chuan-fan JIANG Shu-ren LIU Feng-mao |
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| Institution: | 1.College of Science;China Agricultural University;Beijing 100094;2.Agricultural Basic Department;HeBei North University;Zhangjiakou 075000 |
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| Abstract: | A method based on dispersive-SPE determining pesticide residues in unpolished rice by high performance liquid chromatography-electrospray ionization mass spectrometry was developed.The mass spectrometer was operated with electrospray in the positive ion mode(ESI+).The target analytes were quantified by internal standard method and matrix-matched standard solution used to compensate for matrix effect.The sample was extracted by acetonitrile and cleaned up by dispersive solid phase extraction using primary se... |
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| Keywords: | HPLC-MS Unpolished rice Pesticide residue Dispersive-SPE |
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