Revue des sciences chimiques

Separation and Identification of Heavy Metal Ions by Thin Layer Chromatography on Stannous Silicate Layer

Abstract

SS Dhote, L Deshmukh, L Paliwal

Thin layer of stannous silicate was used to study the chromatographic behavior of 18 metal ions in surfactant mixed solvents. Effect of presence of alcohol at various concentrations, presence of strong and weak electrolytes, effect of concentration of surfactant, effect of acidity and basicity of aqueous surfactant on mobility of metal cations were also studied. By using surfactant and with various additives mixed in mobile phase, metal ions such as Cu2+ - Hg2 + and UO22+ - Ni2+ were separated from their binary mixture. Semi-quantitative determination of Ni2+ by measurement of spot area was attempted.