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Degradation of alachlor herbicide by gamma radiation from cobalt-60 in aqueous and alcohol solution
Authors:M P da Silva  E M Vieira
Institution:1.S?o Carlos Institute of Chemistry,University of S?o Paulo,S?o Carlos,Brazil
Abstract:Alachlor has been widely used in agriculture all over the world. It is suggested that it may be a carcinogen and an environmental estrogen. The aim of this work was to verify the degradation the alachlor by gamma radiation. Gamma radiation from 60Co was used to degrade the alachlor herbicide in water and methanol solution. The alachlor in water and alcohol solution in the concentration of 100 mgL−1 was irradiated with doses of 0.25–50 kGy, at dose rate 5–6 and 2.7 kGyh−1. High performance liquid chromatography was used as an analytical technique to determine the degradation rate of herbicide studied.
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