Separation of Barium and Radium as Their TTA-complexes by Extraction Chromatography

Satisfactory separation of a trace amount of radium from miligram amount of barium was attained on a column of 1.5 M TTA–MIBK (Daiflon) system. An HETP value as low as 0.47 mm was obtained with a column 0.98φ×30 cm at flow rate of 0.17 cm3 per minute. Distribution ratio of radium estimated from this column technique was compatible with the liquid-liquid extraction data.