Adsorption and interaction mechanism of dimethomorph in three different soils
1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. School of Environment, Nanjing University, Nanjing, Jiangsu 210093, China
Abstract：In order to reveal the adsorption behavior and mechanism of dimethomorph in soils, the adsorptions of dimethomorph in three different soils were eondueted by batch sorption method, and influences of environmental factors were evaluated including consistency of solution, time, and pH value. The results show that adsorption isotherms can fit Freundlish equation well. The factor affecting soil adsorption is mainly soil pH. Adsorption coefficients Kf and pH value have a good correlation（r = 0.95）. The results of IR analysis show the formation of hydrogen bonds and the results of ESR suggest the existence of electric donor-aeeeptor mechanism between dimethomorph and humie acid.
2010, Vol. 31 
