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Study on the method of preparation 97Tc

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Abstract

Technetium-99 is one of several long-lived fission products which, when detected in the environment can give an indication of a specific nuclear activity. The most sensitive analytical technique for 99Tc yet reported is by isotopic dilution mass spectrometry with technetium-97 as the yield tracer. A method for the preparation of 97Tc is reported in this paper. 97Tc was obtained by irradiation of a sample of natural ruthenium metal in a high flux reactor. After cooling for 2 years, the technetium was isolated from the sample by technique combining; deposition, solvent extraction, and ion-exchange chromatography techniques. 99mTc and 103Ru were used as radio-tracers for the process. The results showed that more than 70% of the Tc was recovered the decontamination factor is more than 2.3 × 107. The 97Tc was calibrated by isotope dilution mass spectrometry with 99Tc as the yield tracer. The final yield was 29.56 μg of 97Tc suitable for use as a mass spectrometric spike (weight % 97Tc spike: 97Tc, 84.77%; 98Tc, 15.03%; 99Tc, 0.20%).

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Correspondence to Lixiong Wang.

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Wang, L., Yang, T., Xiong, Z. et al. Study on the method of preparation 97Tc. J Radioanal Nucl Chem 283, 111–116 (2010). https://doi.org/10.1007/s10967-009-0129-0

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  • DOI: https://doi.org/10.1007/s10967-009-0129-0

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