Complexation ion exchange electrochromatography of metal ions on papers impregnated with titanium(IV) tungstate

The clectrochromatographic behaviour of 37 metal ions has been studied on titanium(iv) tungstate papers using oxalic, citric, tartaric, hydrochloric and nitric acids as background electrolytes. The ion exchange capacity of these papers is determined and their selectivity for different metal ions discussed. The mechanism of migration is explained. Prediction of elution sequence of metal ions on the basis of their migration is also checked. A number of useful binary and ternary separations arc achieved.