To examine the heavy metal biosorption by the test organism,
stock solutions of Pb (II) and Cd (II) were prepared by
dissolving the nitrate salt of these metals in Milli-Q water.
The resulting stock solution was further diluted to obtain the
desired concentrations for biosorption experiments. For pH
adjustment, 0.1 N HCl and 0.1 N NaOH solutions were used.
All chemicals used in the present course of study were of
analytical reagent (AR) grade