| 摘要: |
| 目的：采用改良液相色谱-串联质谱（liquid chromatography-tandem mass spectrometry，LC-MS/MS）法，对白扁豆花中的30种禁用农药残留进行检测。方法：以乙腈作为提取溶剂，对白扁豆花样品进行提取、净化和浓缩处理后，运用改良LC-MS/MS法检测样品中残留的30种禁用农药。结果：在0.000 5～1.000 0 mg/kg浓度范围内，30种禁用农药的检测结果显示出良好的线性关系，线性相关系数（r2）均高于0.998 0，加标回收率为64.46%～117.64%，精密度为1.50%～13.45%。对20批白扁豆花样品进行检测，未发现其含有30种禁用农药的残留。结论：该方法操作简便、快速，具有高灵敏度和良好的重复性，可用于白扁豆花中30种禁用农药的残留检测。 |
| 关键词: 白扁豆花 禁用农药 30种 改良 液相色谱-串联质谱法 |
| DOI： |
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| Detection of the residues of 30 banned pesticides in Flos Lablab Album by modified liquid chromatography-tandem mass spectrometry |
| RAN Liling,HE Lingjuan,XU Lei |
| (Changsha Social Work College，Changsha 410004，Hunan，China;Hunan Aerospace Tianlu Advanced Material Testing Co.，Ltd.，Changsha 410023，Hunan，China) |
| Abstract: |
| Objective：To detect the residues of 30 banned pesticides in Flos Lablab Album by modified liquid chromatography-tandem mass spectrometry （LC-MS/MS).Methods：With acetonitrile as the extraction solvent，Flos Lablab Album samples were extracted，purified，and concentrated，and modified LC-MS/MS was used to detect the residues of 30 banned pesticides.Results：The detection results of the 30 banned pesticides showed a good linear relationship within the concentration range of 0.000 5-1.000 0 mg/kg，with a linear correlation coefficient of＞0.998 0，a recovery of 64.46%-117.64%，and a precision of 1.50%-13.45%.A total of 20 batches of Flos Lablab Album samples were tested，and no residues of the 30 banned pesticides were found.Conclusion：This method is convenient and rapid with high sensitivity and good reproducibility，and it can be used to detect the residues of 30 banned pesticides in Flos Lablab Album. |
| Key words: Flos Lablab Album banned pesticides thirty types modified liquid chromatography-tandem mass spectrometry |
