Abstract
The development of an analytical method for the determination of four selected pyrethroid insecticides at residue level in beef meat is presented. Acetone and petroleum ether at 40–60 °C were chosen as extraction solvents. A two-step clean-up was performed using an Extrelut NT3-C18 system followed by a Florisil column, with disposable, ready-to-use cartridges. Instrumental analysis was carried out on a gas chromatograph equipped with an electron capture detector (GC–ECD), using matrix-matched and internal standard calibration techniques. Confirmatory analysis by GC–MS was performed. Recoveries at the EU Maximum Residue Limit (MRL), 0.5 × MRL and 1.5 × MRL levels and the repeatabilities were widely satisfactory. The main advantage of the method was the reduction of analysis time as compared with previously published works. The applicability of the method to different matrices and pesticide classes will be investigated.
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Barbini, D.A., Vanni, F., Girolimetti, S. et al. Development of an analytical method for the determination of the residues of four pyrethroids in meat by GC–ECD and confirmation by GC–MS. Anal Bioanal Chem 389, 1791–1798 (2007). https://doi.org/10.1007/s00216-007-1440-7
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DOI: https://doi.org/10.1007/s00216-007-1440-7