Sorption
and desorption of rifampicin was assessed on three different soil. Sorption
mechanism was studied in terms of equilibrium and kinetics at different pH.
Linear, Freundlich and Langmuir isotherm models were adopted to study the
isotherm. The experimental data were best described by pseudo-second order
kinetics (R2 = 1.00). It was observed that rifampicin absorbs better
on soil with lowest organic carbon content. Sorption was observed to increase with
decrease in aqueous pH and i...
At the end of this unit , the student is expected to be able to: 1- Understand the fundamentals of gravimetric analysis. 2- Follow the steps of the gravimetric analysis. 3- Choose the appropriate precipitating agent for a certain analyte. 4- Avoid or at least minimize the contamination of the precipitate. 5- Optimize the precipitation conditions in order to obtain a desirable precipitate. 6- Do all sorts of calculations related to gravimetric analysis.Introductio...