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Dioxins and furans share a similar chemical structure Dioxins include hundreds of chemicals that can be formed as a by-product of industrial processes that use chlorine, such as waste incineration, chemical and pesticide manufacturing, and pulp and paper bleaching. Furans are heterocyclic organic compounds produced during wood and pulp processing. Dioxins and furans share a similar chemical structure. Furans and their derivatives also form a class of insecticides known as carbamates; EPA Method 531.1 was developed specifically for separation and determination of dioxins and furans in soil and water samples The toxicity and persistence of these compounds in the environment have generated interest in developing a method for fast, accurate detection in a wide variety of sample matrices.