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

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