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A commercially available enzyme-linked immunosorbent assay (ELISA) plate kit for screening of cyclodiene insecticides (aldrin, chlordane, dieldrin, endosulfan, endrin, and heptachlor) was evaluated for sensitivity, cross reactivity, and overall performance using groundwater samples from a contaminated site. Ground-water contaminants included several pesticide compounds and their manufacturing byproducts, as well as many other organic and inorganic compounds. Cross-reactivity studies were carried out for the cyclodiene compounds, and results were compared to those listed by the manufacturer. Data obtained were used to evaluate the sensitivity of the ELISA kit to the cyclodiene compounds in ground water samples with a contaminated matrix. The method quantitation limit for the ELISA kit was 15 ??g/L (as chlordane). Of the 56 ground-water samples analyzed using the ELISA plate kits, more than 85% showed cyclodiene insecticide contamination. The ELISA kit showed excellent potential as a screening tool for sites with suspected groundwater contamination by insecticides.
Additional Publication Details
A First Application of Enzyme-Linked Immunosorbent Assay for Screening Cyclodiene Insecticides in Ground Water