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Recovery of ammonium99Tc-pertechnetate from its reaction waste

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Abstract

A method is described for the recovery of NH4 99TcO4 from its reaction waste. From the collected waste solution99Tc was precipitated as99Tc2S7 which on digestion with ammoniacal hydrogen peroxide produced a mixture of NH4 99TcO4 and (NH4)2SO4 from which the latter was removed by treatment with Ba(OH)2. The solution fumished NH4 99TcO4 as a crystalline material in 54% overall yield and with 96–98% purity after chromatographic purification over Dowex 50W column. Recrystallisation of this material from aqueous ammoniacal ethanol gave the analytical material which compared well with a standard sample and with literature data in terms of its β-counts/mg and its molar extinction co-efficients (ɛ) at 244 and 286 nm.

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Authors and Affiliations

  1. Indian Institute of Chemical Biology, 4 Raja S C Mullick Road, 70032, Calcutta, (India)

    M. Chatterjee, A. Bhattacharyya, M. Banerjee & S. N. Banerjee

  2. Variable Energy Cyclotron Centre, I/AF Salt Lake, 700 064, Calcutta, (India)

    S. Bhattacharyya & G. Muthukrishnan

Authors
  1. M. Chatterjee
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  2. S. Bhattacharyya
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  3. A. Bhattacharyya
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  4. M. Banerjee
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  5. G. Muthukrishnan
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  6. S. N. Banerjee
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Chatterjee, M., Bhattacharyya, S., Bhattacharyya, A. et al. Recovery of ammonium99Tc-pertechnetate from its reaction waste. Journal of Radioanalytical and Nuclear Chemistry, Articles 198, 135–141 (1995). https://doi.org/10.1007/BF02038251

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  • DOI: https://doi.org/10.1007/BF02038251

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