Abstract
Distribution coefficients of Ra, alkaline-earth metals (Ca and Sr), and actinides (U and Th) between Dowex-1 × 8 strongly basic anion exchanger and aqueous-methanol solutions of HNO3 were determined in relation to the solution composition. The optimal conditions of Ra concentration and separation from concomitant elements by gradient elution from a single anion-exchange column were determined. A possibility for isolating Ra from solutions with high concentration of alkaline-earth elements, in particular, with the Ca concentration of 10 mg ml- 1 was demonstrated. Based on the principle of operation of isotopic generator, a simple and efficient procedure of repeated separation of 223Ra (T1/2 = 11.4 days) at regular intervals for a long time from the parent radionuclide 227Ac (T1/2 = 21.8 years) was developed.
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REFERENCES
Koid, M. and Bruland, R.W., Anal. Chim. Acta, 1975, vol. 75,no. 1, pp. 1–19.
Krishnaswami, S. and Sarin, M.M., Anal. Chim. Acta, 1976, vol. 83,no. 1, pp. 143–156.
Ioshi, L.U. and Padmanbhan, P.K., J. Radioanal. Chem., 1983, vol. 76,no. 1, pp. 73–79.
Noyce, J.R., Hutchinson, J.M., and Kolb, W.A., J. Radioanal. Chem., 1983, vol. 79,no. 1, pp. 5–13.
Smith, K.E. and Mercer, E.R., J. Radioanal. Chem., 1970, vol. 5,no. 2, pp. 303–312.
Yamamoto, M., Kawamura, H., Igarashi, Y., et al., Radiochim. Acta, 1991, vol. 55,no. 3, pp. 163–167.
Testa, C., Desideri, D., Mell, M., et al., J. Radioanal. Nucl. Chem., 1993, vol. 170,no. 1, pp. 117–124.
Blair, A.J.H., Ihle, H., and Michael, H., Radiochim. Acta, 1968, vol. 10,nos. 3/4, pp. 119–121.
Pavlovskaya, N.A., Mal'tseva, M.M., Perett, O.Yu., et al., Radiokhimiya, 1981, vol. 23,no. 4, pp. 598–602.
Guseva, L.I., J. Radioanal. Nucl. Chem. Articles, 1990, vol. 143,no. 2, pp. 329–335.
Guseva, L.I. and Tikhomirova, G.S., Radiokhimiya, 1994, vol. 36,no. 1, pp. 51–56.
Beyer, G.H., Herrmann, E., Molnar, E., et al., Radiochem. Radioanal. Lett., 1972, vol. 12,no. 4, pp. 259–269.
Fritz, J.S. and Waki, H., Anal. Chem., 1963, vol. 35,no. 8, pp. 1079–1083.
Fritz, J.S., Waki, H., and Garralda, B.B., Anal. Chem., 1964, vol. 36,no. 4, pp. 900–903.
Karalova, Z.K., Rodionova, L.M., Pyzhova, Z.I., and Myasoedov, B.F., Zh. Anal. Khim., 1975, vol. 30, pp. 2138–2143.
Guseva, L.I., Tikhomirova, G.S., and Stepushkina, V.V., J. Radioanal. Nucl. Chem. Articles, 1985, vol. 90,no. 1, pp. 13–22.
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Guseva, L.I., Tikhomirova, G.S. & Dogadkin, N.N. Anion-Exchange Separation of Radium from Alkaline-Earth Metals and Actinides in Aqueous-Methanol Solutions of HNO3. 227Ac-223Ra Generator. Radiochemistry 46, 58–62 (2004). https://doi.org/10.1023/B:RACH.0000024637.39523.e4
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DOI: https://doi.org/10.1023/B:RACH.0000024637.39523.e4