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  • Author or Editor: A. Perkons x
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Abstract  

A simple ion-exchange separation scheme has been developed for the separation of over 50 constituent chemical elements in biological tissues into 12 to 15 groups suitable for quantitative gamma-ray spectrometry. The scheme incorporates several important improvements and modifications of earlier radiochemical ion-exchange separation procedures, and allows rapid simultaneous quantitative analyses of a large number of constituent components in tissues. The procedures can easily be adapted for use with a variety of other materials and mixtures. The components of the various fractious are listed and their gamma-spectrometric analysis is discussed. The separation is comparatively quick, and yields clean and easily-identifiable components.

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Abstract  

Thermal neutron activation analysis and instrumental semiconductor gamma-spectrometry were used to determine the amounts of 43 elemental constituents in the kidneys of rabbits. The results for dried kidney tissue of 12 different rabbits in parts per million, are given for 37 elements, with qualitative determination of 6 elements more. Typical gamma-photopeak spectra at various irradiation and decay times are shown.

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Abstract  

Neutron activation analysis and instrumental Ge(Li) gamma-spectrometry were used to determine the amounts of 33 elemental constituents in the heart tissue of rats. A fast ion-exchange group separation sceme was developed for confirmation of the quantitative and qualitative results. The results, in parts per million of dry heart tissue, are given for 26 elements, together with some typical gamma-spectra at various irradiation and decay times. Optimum irradiation and decay periods for the various components are suggested.

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