GC DETERMINATION OF 10 KINDS OF PESTICIDE RESIDUES IN SOIL

Ten kinds of organochlorine pesticide residues including residues of heptachlor,aldrin BHC and DDT in soil were determined by gas chromatography using internal standard method.RSD′s (n=7) of these pesticides found by the precision test were in the range from 4.2% to 22.0%.Recoveries found by standard addition method were in the range of 70.3%-119.0%.The feasibility of this method was proved by the analysis of some soil samples.