| 引用本文: | 何鹏,余莎莎.固相萃取-气相色谱-质谱法同时测定薄荷中10种农药残留[J].中国现代应用药学,2015,32(12):1471-1476. |
| HE Peng,YU Shasha.Simultaneous Determination of 10 Pesticide Residues in Menthae Haplocalycis Herba by SPE and GC-MS[J].Chin J Mod Appl Pharm(中国现代应用药学),2015,32(12):1471-1476. |
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| 摘要: |
| 目的 运用固相萃取法(SPE)净化、气相色谱-质谱(GC-MS)联用法分析，在选择离子监测模式(SIM)下建立了薄荷中10种农药同时测定的定性定量分析方法。方法 样品用乙腈提取，经SPE净化去除杂质后，直接进行GC-MS分析，内标法定量。结果 10种农药在各自浓度范围内线性关系良好，相关系数均>0.99。10种农药在3个加标水平下的回收率为73.1%~112.8%，相对标准偏差均不超过5%。结论 所用方法操作简单、分析快捷、灵敏准确，适用于薄荷中多种农药的同时分析检测。 |
| 关键词: 固相萃取 气相色谱 质谱 农药残留 薄荷 |
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| Simultaneous Determination of 10 Pesticide Residues in Menthae Haplocalycis Herba by SPE and GC-MS |
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HE Peng1, YU Shasha2
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1.Wuhu Institute for Food and Drug Control, Wuhu 241006, China;2.Anhui Business College, Wuhu 241006, China
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| Abstract: |
| OBJECTIVE To establish a method of qualitative and quantitative analysis simultaneously for 10 pesticides residues in Menthae Haplocalycis Herba with SPE and GC-MS using the mode of selected ion monitoring. METHODS The pesticides residues were extracted from samples with acetonitrile, then the extract was purified by SPE column and ready for GC-MS analysis. Internal standard method was used for quantification. RESULTS The 10 pesticides were linear in the concentration range of themselves with correlation coefficients more than 0.99. The recoveries of 10 pesticides were from 73.1% to 112.8% at three spiked levels with RSDs no more than 5%. CONCLUSION The method is simple, feasible and sensitive with accurate results, which can be used for the simultaneous analysis of various pesticides residues in Menthae Haplocalycis Herba. |
| Key words: SPE GC MS pesticides residues Menthae Haplocalycis Herba |
