| A comprehensive analytical method based on high performance liquid chromatography tandem mass spectrometry（HPLC-MS/MS） was developed for the determination of aldicarb,aldicarb sulfone and aldicarb sulfoxide residues in ginger,tomato,spinach,rice,peanut,soybeans,almonds,apples,citrus,tea,liver and chicken samples.Various samples were extracted with acetonitrile.The extract was purified with soild phase extraction（SPE） column,and then separated on an Agilent（3.5 μm,100 mm×2.1 mm） column.The detection was performed by MS/MS under positive electrospray ionization and multiple reaction monitoring（MRM） mode,with the external standard method.The result indicated that the calibration curves showed good linearities for aldicarb,aldicarb sulfone and ablicarb sulfoxide in the range of 0.01-0.2 mg/L.The limit of detection for the method was 0.002 mg/kg and the limit of quantitation was 0.01 mg/kg.The mean recoveries at three spiked concentration levels（low,middle,high） were between 68% and 89%.The method is reliable,sensitive and reproducible,and could be rapidly applied in the determination of aldicarb,aldicarb sulfone and aldicarb sulfoxide residues in different foods. |