caa a22 4500 469110554 CHVBK 20180323133109.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02034795 doi (NATIONALLICENCE)springer-10.1007/BF02034795 Reversed phase chromatographic separation of zirconium, niobium and hafnium tracers with HDEHP [Elektronische Daten] [N. Das, Susanta Lahiri] 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. Akadémiai Kiadó, 1992 Das N. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 1-AF, Bidhannagar, 700064, Calcutta, India aut Lahiri Susanta Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 1-AF, Bidhannagar, 700064, Calcutta, India aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/2(1992-12-01), 213-223 0236-5731 163:2<213 1992 163 10967 https://doi.org/10.1007/BF02034795 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02034795 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Das N. Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 1-AF, Bidhannagar, 700064, Calcutta, India aut NATIONALLICENCE 700 1- Lahiri Susanta Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 1-AF, Bidhannagar, 700064, Calcutta, India aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 163/2(1992-12-01), 213-223 0236-5731 163:2<213 1992 163 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer