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      Sorption of Sulfachloropyridazine in Brazilian Soils

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          Abstract

          Sulfonamides are among the most widely employed antibacterial in veterinary medicine. Because a substantial proportion of sulfonamides are excreted unchanged as parent compounds after administration or are excreted as their metabolites through urine and feces, their presence in soils is a matter of concern. Adsorption and desorption are important processes that influence the transport, transformation and bioavailability of antimicrobials in soils, and data related to sorption capacity are therefore needed for environmental risk assessments. The sorption potential of sulfachloropyridazine (SCP) was assessed in four Brazilians soils using batch equilibrium experiments. The adsorption/desorption data fit well Freundlich isotherms. The sorption coefficients (KD) ranged from 1.00 to 4.48 cm3 g-1, and the Freundlich adsorption coefficient (KF) ranged from 1.89 to 5.63 µg1-1/n (cm3)1/n g-1 showing that SCP adsorption is generally low in the studied soils. The results were compared with previously published data obtained for the sorption of other sulfonamides in the same four soils.

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          Most cited references 43

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          Chemosphere

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            J. Plant Nutr. Soil Sci

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              Environ. Sci. Technol

               J. Tolls (2001)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                jbchs
                Journal of the Brazilian Chemical Society
                J. Braz. Chem. Soc.
                Sociedade Brasileira de Química (São Paulo, SP, Brazil )
                0103-5053
                1678-4790
                January 2017
                : 28
                : 1
                : 158-167
                Affiliations
                Campinas São Paulo orgnameUniversidade Estadual de Campinas orgdiv1Instituto de Química Brazil
                Article
                S0103-50532017000100158
                10.5935/0103-5053.20160159

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 45, Pages: 10
                Product
                Product Information: website

                sorption, soil, sulfonamide, antimicrobial, veterinary drug

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