Effect of pH and Ionic Strength on the Mechanism of Association of Rodenticides with Natural Organic Components of Soil

摘要: The mechanisms of association hydrophobic organic contaminants with natural matter (for example humic acid, HA) in soil and sediment are a major objective environmental geochemical research. This paper discusses general model for studying the process between series rodenticides by use C18 stationary phase. An approach based on extended Langmuir distribution isotherms was used to study effect bulk solvent pH ionic strength (adjusted addition sodium cation) mechanism HA–rodenticide binding. results demonstrated that: (i) HA can be adsorbed surface phase; (ii) associated surface; (iii) both modify conformation thus its rodenticide molecules.