Evaluation of QuEChERS method for the determination of organochlorine pesticide residues in selected groups of fruits
2011
Cieślik, Ewa | Sadowska-Rociek, Anna | Ruiz, Juan Manuel Molina | Surma-Zadora, Magdalena
This paper reports a method for organochlorine pesticide determination in selected fruit species where pesticide residues were extracted and cleaned using a buffered QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method, followed by GC–MS analysis. The method results showed the matrix-matched calibration curve linearity was >0.99 for all target analytes. With pesticide recovery rates (spiked at 0.008mgkg⁻¹) ranging from 70% to 120%, and RSD values <17% for most compounds, the limit of quantification ranged from 0.001–0.013mgkg⁻¹. Finally, the method ruggedness was further demonstrated by analysis of actual commercial fruits and baby food samples.
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