Abstract
Effective separation of the congeneric pair of elements, zirconium and hafnium and also niobium which was in admixtures with zirconium as daughter in its isotopic form were achieved through reversed phase column and paper extraction chromatographic procedures using di-(2-ethylhexyl)phosphoric acid (HDEHP) as the liquid exchanger. In reversed phase column chromatographic separation, the tracers,95Zr,95Nb and175,181Hf, were extracted by HDEHP impregnated on kieselguhr and were sequentially eluted with 6N H2SO4+xN oxalic acid+H2O2(where x=0.1, 0.5 and 2). Similarly, in reversed phase paper chromatographic study in which a coating of HDEHP on Whatman No. 1 chromatographic paper was used as stationary phase, the mobile phase, 18N H2SO4+0.1N oxalic acid + H2O2, helped in separating the elements with favorable separation factors. Under the optimal conditions, the separation and decontamination of the elements in both methods were found to be quantitative, as verified by γ-spectrometric studies.
Similar content being viewed by others
References
H. REMY, Treatise On Inorganic Chemistry, Vol. 2, Elsevier Publishing Company, Amsterdam-Houston-London-New York, 1956.
B. NANDI, N. R. DAS, S. N. BHATTACHARYYA, Solv. Extr. Ion. Exch., 1 (1983) No. 1, 141.
S. N. BHATTACHARYYA, B. (Nandi) GANGULY, Solv. Extr. Ion. Exch., 2 (1984) Nos 4–5, 699.
P. CHATTOPADHYAY, Radiochemical separation of some critical pairs of elements through solvent extraction and reversed phase extraction chromatography, Ph. D. Thesies, University of Calcutta, 1988.
C. F. POOLE, S. A. SCHUETTE, Contemporary Practice of Chromatography, Elsevier, Amsterdam-Oxford-New York-Tokyo, 1984.
N. R. DAS, S. LAHIRI, Solv. Extr. Ion. Exch., 9 (1991) No. 2, 337.
N. R. DAS, N. R. B. NANDI, S. N. BHATTACHARYYA, Int. J. Appl. Radiation Isotopes, 32 (1981) 205.
N. R. DAS, P. CHATTOPADHYAY, Bull. Chem. Soc. Japan, 61 (1988) 4423.
S. N. BHATTACHARYYA, S. SARKAR, J. Inorg. Nucl. Chem., 41 (1979) 753.
C. F. SIMPSON, Techniques of Liquid Chromatography, John-Wiley and Sons, Chichester-New York-Brisbane-Toronto-Singapore, 1982.
D. F. PEPPARD, J. R. FERRARO, J. Inorg. Nucl. Chem., 10 (1959) 275.
H. REMY, Treatise on Inorganic Chemistry, Vol. 2, Elsevier Publishing Company, Amsterdam-Houston-London-New York, 1956.
N. N. GREENWOOD, A. EARNSHAW, Chemistry of the Elements, Maxwell MacMillan International Editors, Oxford-New York-Beijing-Sao Paulo-Sydney-Tokyo-Toronto 1989.
C. E. CROUTHAMEL, Applied Gamma-ray Spectrometry, Pergamon Press, Oxford-New York-Toronto-Sydney-Braunschweig, 1970.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Das, N.R., Lahiri, S. Reversed phase chromatographic separation of zirconium, niobium and hafnium tracers with HDEHP. Journal of Radioanalytical and Nuclear Chemistry, Articles 163, 213–223 (1992). https://doi.org/10.1007/BF02034795
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02034795