气相色谱质谱法检测蔬菜中多效唑的残留  

Determination of paclobutrazol residue in cabbages and cucumbers by gas chromatography mass spectrum method

作　　者：吕燕[1] 赵健[1] 杨挺[1] 王立君[1] 

机构地区：[1]农业部农产品质量安全监督检验测试中心,浙江宁波315040

出　　处：《中国测试》2010年第4期57-59,共3页China Measurement & Test

基　　金：宁波市农业与社会发展科研攻关项目(2006C100071)

摘　　要：建立了白菜和黄瓜中多效唑残留的检测方法。样品经乙腈提取,弗罗里硅土固相萃取小柱净化,以气相色谱/质谱选择125,167,236三个碎片离子进行定性定量分析。结果表明,多效唑在0.050～1.0 mg/L范围内呈线性关系(R为0.9998),3种不同添加浓度0.040mg/kg、0.10mg/kg和0.50mg/kg下白菜和黄瓜中多效唑的平均添加回收率在89.04%～99.77%之间,变异系数在2.57%～7.51%之间,检测限(S/N=3)为0.01 mg/kg,方法适用于蔬菜中多效唑的检测。The method was developed to determine paclobutrazol residue in cabbages and cucumbers.Samples were extracted by acetonitrile,and further cleaned-up by florisil solid phase extraction cartridge,retention time and specific ions were used to identify paclobutrazol.The selected fragments were m/z 125,167,236 respectively.Within the range of 0.050~1.0 mg/L,the calibration curve of paclobutrazol was linear with the correlation coefficient 0.9998.In different concentrations of 0.040 mg/kg,0.10 mg/kg and 0.50 mg/kg...

关 键 词：多效唑 气相色谱质谱法 白菜 黄瓜 蔬菜 残留 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程]