Thin layer chromatography of 57 metal ions on an inorganic ion-exchanger in mixed solvent systems |
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Authors: | Syed Waqif Husain Fahimeh Eivazi |
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Institution: | (1) Analytical Laboratories, Chemistry Department, Faculty of Science, Azarabadegan University, Tabriz, Iran |
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Abstract: | Summary Thin layers of stannic arsenate have been used to study the chromatographic behaviour of 57 metal ions in different mixed solvents. Au3+, Hg2+, UO
2
2+
, Be2+ and Al3+ and others can be easily separated from numerous metal ions. Fast quaternary, ternary and binary separations have been also achieved. Important separations are discussed. The effect of pH, duration of heating of ionexchanger plates and layer thickness on the Rf values has been studied and discussed. It is shown that Lederer's equation is also obeyed by thin layers of stannic arsenate, if instead of concentration of Na+ ion its activity is taken into consideration. |
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