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Separation of 99Mo and 99mTc by liquid–liquid extraction using trioctylamine as extractant

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Abstract

Amongst various radionuclides of molybdenum, 90Mo and 99Mo have suitable β energy for clinical uses. In this paper we report separation of 99Mo from 99Mo-99mTc equilibrium mixture. The liquid–liquid extraction technique has been employed using trioctylamine (TOA) diluted in cyclohexane as organic phase and HCl as aqueous phase. At 10−5 M HCl and 0.5 M TOA concentration 99mTc quantitatively transferred to the organic phase leaving 99Mo in the aqueous phase. The developed separation method is efficient and provides very high separation factor.

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Acknowledgements

This work has been carried out as part of XI 5-year plan project, Trace Analysis: Detection Dynamics and Speciation (TADDS). One of the authors (MM) gratefully acknowledges Council of Scientific and Industrial Research, CSIR, India for necessary fellowship.

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Authors and Affiliations

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

    Moumita Maiti & Susanta Lahiri

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  1. Moumita Maiti
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  2. Susanta Lahiri
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Correspondence to Susanta Lahiri.

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Maiti, M., Lahiri, S. Separation of 99Mo and 99mTc by liquid–liquid extraction using trioctylamine as extractant. J Radioanal Nucl Chem 283, 661–663 (2010). https://doi.org/10.1007/s10967-009-0403-1

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  • DOI: https://doi.org/10.1007/s10967-009-0403-1

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