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Química Nova

Print version ISSN 0100-4042

Abstract

LOPES, Nilva Pereira; QUEIROZ, Maria Eliana Lopes Ribeiro de; NEVES, Antônio Augusto  and  ZAMBOLIM, Laércio. Influence of organic matter on the adsorption of triadimenol fungicide by soil. Quím. Nova [online]. 2002, vol.25, n.4, pp.544-547. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422002000400006.

The adsorption of triadimenol (1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)butan-2-ol) on soil samples with varying contents of organic matter was studied. The adsorption was described by means of the Freundlich's isoterm. An increase in the capacity of adsorption was observed as the content of organic carbon in the matrix increased. That effect was observed when removing the organic matter from the soil, when adding a urban waste compost to the soil sample as well as to the soil sample without organic matter, and also after leaving proportions of urban waste compost incubated in these matrices for a period of 120 days. The results show that the adsorption of the triadimenol in the soil is dependent of its content of organic carbon.

Keywords : adsorption; gas chromatography; triadimenol.

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