Degradation of carbofuran and carbofuran-derivatives in presence of humic substances under basic conditions

作者：Morales Jorge; Manso Jose A; Cid Antonio; Mejuto Juan C^*

来源：Chemosphere, 2012, 89(11): 1267-1271.

DOI：10.1016/j.chemosphere.2012.05.018

• Humic substances
• Carbofuran
• 3-Hydroxy-carbofuran
• 3-Keto-carbofuran
• Pesticides
• Hydrolysis

The influence of humic aggregates in water solution upon the chemical stability of carbofuran (CF) and the carbofuran-derivatives, 3-hydroxy-carbofuran (HCF) and 3-keto-carbofuran (KCF), has been investigated in basic media. An inhibition upon the basic hydrolysis of 3-hydroxy-carbofuran and 3-keto-carbofuran (similar to 1.7 and similar to 1.5-fold, respectively) was observed and it was rationalized in terms of the micellar pseudophase model. Nevertheless, non-significant effect upon the carbofuran stability was found in the presence of humic substances. These behaviors have been compared with the corresponding ones in other synthetic colloidal aggregates.

• 出版日期2012-11