Sorção do inseticida tiametoxam nas frações orgânica e mineral de um latossolo amarelo

Química Nova

Oscarlina Lúcia Dos Santos Weber¹  Eucarlos De Lima Martins¹  Eliana Freire Gaspar De Carvalho Dores¹  Lauro Dormivil De Amorim Curado¹ 

[1] ,Universidade Federal de Mato Grosso Instituto de Ciências Exatas e da Terra Departamento de QuímicaCuiabá MT ,Brasil

关键词: bath experiment;    soil organic matter;    environmental contamination;   

DOI  :  10.1590/S0100-40422009000900003

来源: SciELO

【 摘 要 】

The sorption of thiamethoxam in a Brazilian Oxisol was determined in soil samples with and without organic matter for two different dephs (0-0.1 and 0.4-0.7 m). The results indicated a predominant sorption of thiamethoxam on soil without organic matter. The following Kd values of 4.25 mL g-1 (0-0.1 m, r² = 0.8534) and 5.30 mL g-1 (0.4-0.7 m, r² = 0.9884) and Kf values, 7.65 mL g-1 (0-0.1 m, r² = 0.9623) and 7.72 mL g-1 (0.4-0.7 m, r² = 0.9775) were obtained. Those sorption coefficient values indicated a small interaction between thiamethoxam for both original soil and soil without organic matter.

【 授权许可】

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