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Aquatic photodegradation of albendazole and its major metabolites. 2. Reaction quantum yield, photolysis rate, and half-life in the environment



Aquatic photodegradation of albendazole and its major metabolites. 2. Reaction quantum yield, photolysis rate, and half-life in the environment



Journal of Agricultural and Food Chemistry 40(8): 1419-1421



The photolysis rate constant (kp) of albendazole (ABZ) and its three major metabolites, albendazole sulfoxide (ABZSO), albendazole sulfone (ABZSO2), and 2-aminoalbendazole sulfone (ABZ2NH2), measured in a tube (11 X 100 mm) (see part 1 of this series) will essentially reflect a faster rate than the expected rate (kpE) at the surface of flat water body in the environment. The internal reflections increase the incident sunlight in a test tube. In this experiment, the photolytic reaction quantum yield and photolysis rate constant, kp, measured in a quartz tube were converted to reflect the environmentally relevant rates. A maximum environmental photolysis rate constant (kpE), a minimum half-life, and their respective values for summer and winter seasons for ABZ and its metabolites were estimated.

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Accession: 002304607

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DOI: 10.1021/jf00020a026


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