Determination of Multiclass Pesticide Residues in Mangoes by Liquid Chromatography –tandem Mass Spectrometry

نویسندگان

  • M. Bujagendra Raju
  • C. Narasimha Rao
  • G. V. Ravi Kumar
  • B. Thirupathi Rao
  • Murali Krishna
  • K. Prasad
  • P. Venkateswarlu
چکیده

The Development of an analytical method for the determination of 24 multiclass pesticides in mango at the ≤10 ng g level. The method involves extraction of 10 g of homogenized mango samples (2 g of Sodium chloride+8g of Magnesium sulfate) with 10 mL of Acetonitrile; Clean up by Dispersive solid phase extraction with a combination of primary secondary amine (PSA), graphitized carbon black (GCB) and anhydrous Magnesium sulfate and final estimation by LC-MS/MS with multiple reaction monitoring (MRM) mode. The mean recoveries were in the range 80-120%. The method quantifies over a linear dynamic range of 10-100 μg/kg. The methodology has been proven to be highly efficient and robust and thus the method is suitable for monitoring the Maximum Residue Limits (MRL) compliance of a wide range of pesticides combinations.

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تاریخ انتشار 2011