Abstract
Thiabendazole 2-(4'-thiazolyl)benzimidazole (TBZ) is a Benzimidazole fungicide. In the present study adsorption and desorption of TBZ was investigated through batch equilibrium method involving UV-Visible spectrophotometer and High-performance liquid chromatography. Linear and Freundlich coefficients and kinetics of TBZ was studied in different agricultural soils of Pakistan. 9.8µgml-1 and 12.09µgml-1 were highest values of Kd ads and Kd des respectively. Kf ads values ranged from 6.6 to 8µgml-1 whereas values of Kf des followed the range of 1.5µgml-1 to 9.8µgml-1. Most of the samples depict negative hysteresis as their 1/ndes was more than 1/nads. Gibbs or free energy change (∆G) and hysteresis vividly proved physical and reversible adsorption process. The values of Kom and Koc were indicated medium mobility group of TBZ in selected soils. However all kinetic values varied significantly from sample to sample depending on their physicochemical parameters
Taghazal Zahra, Khuram Shahzad Ahmad, Irum Shaheen, Sundus Azhar , Shaan Bibi Jaffri. (2017) Determining the adsorption and desorption behavior of thiabendazole fungicide for five different agricultural soils , The Journal Soil & Environment , Volume 36, Isuue 1.
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