气相色谱串联质谱法测定芒果中腈苯唑和溴螨酯残留,此文是一篇溴螨酯论文范文,为你的毕业论文写作提供有价值的参考。
溴螨酯论文参考文献：
摘 要 建立了气相色谱/三重串联四级杆质谱分析芒果中腈苯唑和溴螨酯农药残留的方法.采用乙腈提取,Carbon/NH2固相萃取小柱净化后采用气相色谱/三重串联四级杆质谱多反应（MRM）模式下进行外标法定量测定,并对腈苯唑和溴螨酯的基质效应进行分析.结果表明：2种农药在0.01～1.00 mg/L范围内线性关系均良好.该方法对腈苯唑和溴螨酯的检出限（LOD）分别为0.003、0.002 mg/kg,定量限（LOQ）分别为0.010、0.008 mg/kg.在0.01～0.05 mg/kg浓度添加水平下,2种农药的平均回收率处于76.5%～89.6%之间,相对标准偏差（RSD）不大于10.3%.该方法背景干扰少,灵敏度高,重复稳定性好,可用于分析芒果中腈苯唑和溴螨酯的残留测定.
关键词 气相色谱-串联质谱；农药残留；腈苯唑；溴螨酯；芒果
中图分类号 S667.8 文献标识码 A
Determination of Fenbuconazole and Bromopropylate Pesticide
Residues in Mango Using Gas Chromatography-triple
Quadrupole Mass Spectrometry
LI Pingping1 *, CHENG Jing2, LI Shuhuai1, LI Chunli1
1 Analytical and Test Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
2 Quality Inspection and Test Center for Agricultural Products of Heilongjiang Province, Harbin, Heilongjiang 150090, China
Abstract A method was developed for the determination of fenbuconazole and bromopropylate pesticide residues in mango using gas chromatography-triple quadrupole mass spectrometry（GC-MS/MS）. The pesticides were extracted with acetonitrile, and then purified by the column of Carbon/NH2. The extracts were determined by the mode of multiple reaction monitoring（MRM）of GC-MS/MS using external standard method and the matrix effect was investigated. The results showed that the linearity range of the method between 0.01 mg/L and 1.00 mg/L was fine. The limits of determination of the method were 0.003 mg/kg for fenbuconazole and 0.002 mg/kg for bromopropylate. The limits of quantitation（LOQ）were 0.01 mg/kg for fenbuconazole and 0.008 mg/kg for bromopropylate. The recoveries of all pesticedes at the spiked level of 0.010 mg/kg to 0.05 mg/kg into mango matrixes were in the range of 76.5% to 89.6%,and the relative standard deviations（RSDs）were less than 10.3%. It is proved that the method is stable,sensitive,and good reproducible with low background,therefore it can be used in the analysis of fenbuconazole and bromopropylate pesticide residues in mango.
Key words Gas chromatography-triple quadrupole mass spectrometry（GC-MS/MS）； Pesticide residues； Fenbuconazole； Bromopropylate； Mango
doi 10.3969/j.issn.1000-2561.2015.04.027
结论：关于本文可作为相关专业溴螨酯论文写作研究的大学硕士与本科毕业论文排名前五的杀螨剂论文开题报告范文和职称论文参考文献资料。
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