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Title of Journal: J Radioanal Nucl Chem

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Abbravation: Journal of Radioanalytical and Nuclear Chemistry

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Springer Netherlands

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ISSN

1588-2780

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Determination of Superscript90/SuperscriptSr a

Authors: Gabriela Wallova Norbert Kandler Gabriele Wallner
Publish Date: 2010/08/19
Volume: 286, Issue: 2, Pages: 429-433
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Abstract

This work describes a procedure for the isolation of 90Sr and 210Pb from deer bones by anion exchange methods and their sequential measurement by LSC To prevent collection of Pb on the Sr·Spec® resin we first separated Pb on a Dowex anion exchange column Sr which is not held back on the Dowex column was then purified using Sr·Spec® resin first Ca and the Ra isotopes were eluted with 3 M HNO3 and then Sr was eluted with distilled water With this 2steps procedure pure 210Pb and 90Sr spectra can be achieved The chemical yield of both steps was determined by ICPMS Our 90Sr results show satisfying agreement with data obtained by a shorter Sr·Spec® method and also by the “classical” 90Sr determination using fuming nitric acid Also 210Pb results were checked by remeasuring bone samples with already known 210Pb activities Further our method was verified on the reference sample IAEAA12

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