Pesticide Analysis by GC / ECD / NPD & FID
Since 1963, when Rachel Carson published Silent Spring about the destructive power of synthetic chemicals, regulatory agencies in the U.S. have increasingly restricted the manufacture and use of pesticides. The goals of pesticide regulations are to eliminate the use of persistent chemicals like DDT, and to encourage the development of safe, targetspecific compounds. Because of the high agricultural demand for pesticides, coupled with regulatory pressure to create short-lived, specialized compounds, a broad array of synthetic chemicals now exists in the environment. As a consequence, the environmental analysis of pesticides involves separations of complex mixtures of compounds by metabolic by-products. The need to quantify them at trace concentrations in difficult matrices, such as soils and surface waters, requires sophisticated gas chromatrography.