Simultaneous Determination of Nine Pesticide Residues in Vegetables,Fruit and Edible Fungi by Reverse Phase High Performance Liquid Chromatography
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Simultaneous Determination of Nine Pesticide Residues in Vegetables,Fruit and Edible Fungi by Reverse Phase High Performance Liquid Chromatography
Vol. 33, Issue 6, Pages: 698-702(2014)
作者机构:
广东省农业科学院农产品公共监测中心
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Simultaneous Determination of Nine Pesticide Residues in Vegetables,Fruit and Edible Fungi by Reverse Phase High Performance Liquid Chromatography. [J]. 33(6):698-702(2014)
DOI:
Simultaneous Determination of Nine Pesticide Residues in Vegetables,Fruit and Edible Fungi by Reverse Phase High Performance Liquid Chromatography. [J]. 33(6):698-702(2014)DOI:
Simultaneous Determination of Nine Pesticide Residues in Vegetables,Fruit and Edible Fungi by Reverse Phase High Performance Liquid Chromatography
A reverse phase high performance liquid chromatographic(RP-HPLC) with variable wavelength detector(VWD) method was developed for the simultaneous determination of nine pesticide residues,including imidacloprid,acetamiprid,carbendazim, thiophanate-methyl, pyrimethanil,diflubenzuron,benzoylphenyl,phxim,avermectins in vegetables,fruit and edible fungi.The sample was extracted with acetonitrile and purified by Primary secondary amine(PSA)dispersive solid phase extraction.The analytes were separated on a C18(250 mm×4.6 mm,5 μm)column by gradient elution with methanol-acetonitrile(3∶1) and water as mobile phase,and detected at the wavelengths of 270,258,275,254,280,245 nm,respectively.The flow rate was set at 1.0 mL/min and the column temperature was 40 ℃.The results indicated that the calibration curves of nine pesticides showed good linear relationships in the concentration of 0.05-10.0 mg/L with correlation coefficients more than 0.999.The detection limits ranged from 0.006 mg/kg to 0.07 mg/kg.The recoveries ranged from 81.0% to 115.2% with relative standard deviations(RSD) of 0.5%-10.2%.The method was simple,rapid,sensitive and accurate,and was suitable for the determination of the above 9 pesticide residues in vegetables,fruit and edible fungi.
关键词
反相高效液相色谱法蔬菜水果食用菌农药残留
Keywords
reverse phase high performance liquid chromatography(RP-HPLC)vegetablesfruitedible fungipesticide residues
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