The method developed in this study was reliable, simple, and
rapid (only about 2 h for the entire sample preparation and analysis).
It consumed only small amounts of solvents, and was therefore
more environment-friendly than the conventional methods.
The method was sensitive (LOQs at the low lg kg1 level, such as
0.3 lg kg1 for fenthion) for the determination of multiple pesticide
residues in foods of animal origin. Compared with the traditional
sample preparation methods, results from this study
showed that this new method can be considered a fast and easy
alternative technique with great ruggedness, high degree of automation
and good suitability for screening multiple pesticides in
the foods of animal origin. The proposed method provided a good
improvement in the analysis of multi-residues of pesticides, and
may be used for the implementation of regulations of CAC, EU,
USA, the positive list system of Japan, and GB 2763-2005 of China
MRLs.