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Separation of 97Ru from niobium target using PEG based aqueous biphasic systems

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Abstract

Separation of no-carrier-added (NCA) 97Ru from bulk niobium target has been carried out for the first time using green analytical technique, aqueous biphasic system. 50 % (w/v) polyethylene glycol (PEG)-4000, against 2 M solutions of various salts such as Na-citrate, Na-tartarate, Na-malonate, Na2CO3, NaHSO3, Na2SO4, Na2S2O3 K2HPO4, K3PO4, K2CO3 and 4 M KOH were employed at room temperature for the extraction of NCA 97Ru from bulk niobium. Influence of molecular weight of PEG rich phase as well as pH of some salt rich phase (e.g., Na-tartarate) on the extraction behaviour of NCA 97Ru into PEG rich phase was also observed. In the presence of sodium-tartarate salt solution, when volume of PEG-4000: Na-tartarate was 3:1, 91 % of NCA 97Ru was extracted into the PEG rich phase without any contamination of niobium target. Dialysis of PEG rich phase containing NCA 97Ru was carried out against deionised water to obtained pure NCA 97Ru.

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Acknowledgments

Authors acknowledge the co-operation of the staff of BARC-TIFR pelletron facility, Mumbai, TIFR target laboratory, Mumbai for preparing targets and the financial support of SINP-DAE 12th 5 year plan project TULIP.

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Authors and Affiliations

  1. Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, India

    Arpita Datta & Susanta Lahiri

  2. Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India

    Moumita Maiti

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  1. Arpita Datta
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  2. Moumita Maiti
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  3. Susanta Lahiri
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Correspondence to Moumita Maiti.

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Datta, A., Maiti, M. & Lahiri, S. Separation of 97Ru from niobium target using PEG based aqueous biphasic systems. J Radioanal Nucl Chem 302, 931–937 (2014). https://doi.org/10.1007/s10967-014-3358-9

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