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- W2368412424 abstract "Objective:To explore the elution efficiency of bifenthrin and fenpropathrin in vegetables,eluted with miscible liquids of acetonitrile and methylbenzene with different volume ratio and different elution volume,cleaned up by PestiCarb/NH2 solid phase extraction column(SPE column) with gas chromatography(GC)ECD detector.Methods:The sample was extracted with acetonitril.After concentration,the extract was purified by PestiCarb/NH2SPE column and miscible liquids of acetonitrile:methylbenzene=3:1,separated with OV-1701 capillary column and determined by GC ECD.Results:The detectable concentration of bifenthrin by this method was 0.3 μg/kg.The limit of quantification was 0.8 μg/kg.The relative standard deviations(RSDs) were in the range of 6.1%～3.8%.The detectable concentration of fenpropathrin by this method was 1.0 μg/kg.The limit of quantification was 3.3 μg/kg.The RSDs were in the range of 6.4%～3.4%.The average recoveries were in the range of 95%～105%.Conclusion:With the clean-up condition,the method with satisfactory recoveries and repeatability is suitable for determination of bifenthrin and fenpropathrin in vegetables." @default.
- W2368412424 created "2016-06-24" @default.
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- W2368412424 date "2011-01-01" @default.
- W2368412424 modified "2023-09-22" @default.
- W2368412424 title "Determination of bifenthrin and fenpropathrin in vegetables by gas chromatography" @default.
- W2368412424 hasPublicationYear "2011" @default.
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