Title: Determination of Multiple Pesticides Residue in Garlic by Gas Chromatography/Mass Spectrometry
Abstract: [Objective] The research aimed to establish gas chromatography/mass spectrometry (GC/MS) and determine 211 kinds of pesticides residues in garlic.[Method] Garlic was firstly treated with microwave to inactivate the enzymes.Acetonitrile and water were used for homogenized exrraction.And PSA and C18 solid-phase extraction (SPE) column were used for purification.And pesticide residues were determined by using GC/MS.[Result] The limit of detection (LOD) of all pesticides was in a range of 0.015-0.082 mg/kg and most LOD of pesticides were below 0.020 mg/kg.When the standard injection level was 0.1 mg/kg,all relative standard deviations were less than 15%.Only the individual pesticides had recoveries below 70%.[Conclusion] The research provided new approaches for removing the disturbance of sulphide in the determination of S-contained vegetables.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 2
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