摘要
目的:建立蔬果中23种有机磷农药残留GC-FPD分析方法。方法:采乙腈均浆提取样品中的有机磷类农药,通过固相萃取仪提取净化,用FPD检测器进行检测。结果:23种有机磷农药在0.05μg/ml～2.0μg/ml范围内均有较好的线性相关系数均在0.99以上,检出限为0.2μg/L～10.0μg/L,23种有机磷农药回收率加标0.5 mg/kg时,为73.5%～99.5%之间,加标2.0 mg/kg时,为80.5%～102.4%之间,变异系数RSD,加标0.5 mg/kg时,为1.1%～4.6%之间,加标2.0 mg/kg时,为1.2%～5.1%之间。结论:此法简便,快速,净化效果好,回收率高,可同时测定水果、蔬菜中的多种有机磷农药残留。
Objective：A method for the determination of 23organophosphorus pesticides residuces in fruits and vegetables by SPE/GC.Methods：The samples were extracted by acetonitrile solution,after the extract was purified through CARBON-NH3 column.The collected solution was analyzed by using GC–FPD.Results：27 organophosphorus pesticides gave a good linearity in the range of 0.05 μg/ml～2.0 μg/ml（r0.99）.The detectionlimints were 0.2 μg/L～10.0 μg/L.The recovery rate and RSD were73.5%～99.5% and 1.1%～4.6% at 0.5 mg/kg respectively,and were 80.5%～102.4%,and 1.2%～5.1% at 2.0 mg/kg respectively.Conclusion：The method is simple,rapid,effective purification and high recovery.It is suitable for the sample shape full of 23organophosphorus pesticides residuces in fruits and vegetables.
出处
《中国卫生检验杂志》
CAS
2011年第3期566-567,569,共3页
Chinese Journal of Health Laboratory Technology
基金
镇海区软科学研究计划项目(2009-52)
关键词
固相萃取
快速
有机磷农药
蔬果
Solid phase extraction（SPE）
Rapid
Organophosphorus pesticide
Fruits and vegetables
