食品工业科技2017，Vol.38Issue(20)：260-265,6.DOI:10.13386/j.issn1002-0306.2017.20.046
超高效液相色谱-串联质谱法测定哈密瓜和茄子中氟啶虫胺腈的残留量
Determination of sulfoxaflor residues in melon and eggplant by ultra-high performance liquid chromatography-tandem mass spectrometry
摘要
Abstract
It is verified that GB/T 20769-2008 is also suitable for the determination of the residue of sulfoxaflor in the samples of cantaloupe and eggplant and simplied the pretreatment steps.Samples of melon and eggplant were initially extracted with acetonitrile,sahing out by NaCl,cleaned up by aminopropyl (NH2)cartridge,eluted by methanol and dichloromethane (5∶ 95,v∶ v),metered by methanol and water (1∶ 1,v∶ v).After filtered with a 0.2 μm membrane,the resulting samples determined by UPLC-MS/MS performing on negative electrospray ionization and the multiple reactions monitoring mode (MRM).The matrix-matched external standard calibration curves were used for quantitative analysis.The linearly dependent coefficient r of sulfoxaflor for cantaloupe and eggplant were 0.9998 and 0.9992,respectively.The added recoveries were between 81.00％～ 107.76％ in the concentration range of 50 ～ 500 μg/L The lowest limit of detection (LOD)was 0.72 μg/kg and 0.62 μg/kg,and the relative standard deviations(RSD,n =6)were in the range of 2.56％ ～3.82％.The method can meet the requirements for determination of sulfoxaflor residue in cantaloupe and eggplant,and it is a quick,easy,effective,sensitive and accurate method.关键词
氟啶虫胺腈/超高效液相色谱-串联质谱法/茄子/哈密瓜/残留量Key words
sulfoxaflor/ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS)/cantaloupe/eggplant/residue分类
轻工纺织引用本文复制引用
陈爱松,崔银仓,羌松,张强,周成松,刘淑华,靳改龙,张以和,马德英..超高效液相色谱-串联质谱法测定哈密瓜和茄子中氟啶虫胺腈的残留量[J].食品工业科技,2017,38(20):260-265,6.基金项目
公益性行业(农业)科研专项(201503107-11). （农业）
