Study on Determination of Multi-Residues for 65 Pesticides in Vegetables and Fruits Using Liquid Chromatography Coupled with Mass Spectrometry
Yu Chen
Abstract
Yu Chen
Abstract
A multi-residue method for the determination of 65 pesticides in vegetables and fruits by means of LC / MS / MS is presented.The pesticides were extracted by acetonitrile,enriched and cleaned up by SPE.Chromatographic separation was performed on a C18 column using a gradient elution of acetonitrile-water containing 0.02% formic acid.The average recoveries ranged from 70%~120%,and the limit of detection(LOD) was 0.02~20 μg / kg.The method is simple,rapid,accurate and suitable for simultaneous determination of these pesticides in vegetables and fruits.
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A multi-residue method for the determination of 65 pesticides in vegetables and fruits by means of LC / MS / MS is presented.The pesticides were extracted by acetonitrile,enriched and cleaned up by SPE.Chromatographic separation was performed on a C18 column using a gradient elution of acetonitrile-water containing 0.02% formic acid.The average recoveries ranged from 70%~120%,and the limit of detection(LOD) was 0.02~20 μg / kg.The method is simple,rapid,accurate and suitable for simultaneous determination of these pesticides in vegetables and fruits.
Key concepts: Chromatography, Formic acid, Chemistry, Pesticide, Pesticide residue, Acetonitrile, Detection limit, Residue (chemistry)