Vol. 5, Special Issue 12, Part A (2019)

Abstract
Thin layer chromatographic method has been developed for the separation of metal ions such as Cr⁶⁺, Cr³⁺, As³⁺, Cd²⁺, Tl³⁺ and Hg²⁺ from their two, three and four component mixtures and there comparative study in different mobile phases. As well as their separation ability was studied comparatively with respect to each other. The separations were performed on thin layer of silica gel ‘G’ using aqueous Oxalic acid and L-valine as mobile phase. The effect of concentration and pH of mobile phase on the R_f values of individual metal ions were studied and the optimum conditions for separation of metal ions from their mixture were determined separately for each mobile phase, then data of both mobile phase has been compared.