PESTICIDE-RESIDUE DETERMINATION IN HONEY AND APPLES BY HPLC AND GC

Two HPLC and GC methods on capillary column which allow the simultaneous determination of 18 pesticides in honey and apples have been developed A good separation of most pesticides was achieved using each method The limits of sensitivity ranged from 0.025 to 0.2 ppm. These methods, HPLC and GC, require respectively a liquid-liquid extraction and a solid-liquid one, allowing sample purification and residue concentration. The procedure yields reproducible results with adequate sensitivity for routine monitoring of pesticide residues in these products.