Chromatographic behaviour of metal ions on egg shell layers

摘要

The thin layer chromatography of metal ion has been performed in twleve solvent system's on egg shell layers.The separation of Mo~(6+) from Ti~(4+),Vo~(2+),Fe~(2+),Fe~(3+),UO_2~(2+),Ta~(5+) and Nb~(5+);Tl~+ from Hg~(2+) and Pb~(2+);Hg~(2+) from Hg~+ have been achieved on egg shell layers in distilled water,0.1 M calcium nitrate and 0.1 M potassium thiocyanate,respectively.The separation on egg ehsell shell layers follow the ion exchange precipation mechanism as evidenced by the X-ray analysis results and the solubility data on various carbonates.