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ACTIVATION AND ANALYTICAL PURITY TESTING OF RARE EARTHS

H. Große‐Ruyken, H. Rommel

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Abstract

The degree of purity of Y/sub 2/O/sub 3/ and Sm/sub 2/O/sub 3/ from the VEB Stickstoffwerke Piesteritz was determined by activation analysis. The necessary separation of the rare earth impurities was made in a micro ion exchange column. The detection sensitivity of the apparatus with an analytic sample or 100 mu g was 10/sup -3%/ Sm,S x 10/sup -4%/ Eu, and 10/sup -1%/ Gd and Y. The apparatus used is described. (tr-auth)

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The degree of purity of Y/sub 2/O/sub 3/ and Sm/sub 2/O/sub 3/ from the VEB Stickstoffwerke Piesteritz was determined by activation analysis. The necessary separation of the rare earth impurities was made in a micro ion exchange column. The detection sensitivity of the apparatus with an analytic sample or 100 mu g was 10/sup -3%/ Sm,S x 10/sup -4%/ Eu, and 10/sup -1%/ Gd and Y. The apparatus used is described. (tr-auth)

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Available abstract

The degree of purity of Y/sub 2/O/sub 3/ and Sm/sub 2/O/sub 3/ from the VEB Stickstoffwerke Piesteritz was determined by activation analysis. The necessary separation of the rare earth impurities was made in a micro ion exchange column. The detection sensitivity of the apparatus with an analytic sample or 100 mu g was 10/sup -3%/ Sm,S x 10/sup -4%/ Eu, and 10/sup -1%/ Gd and Y. The apparatus used is described. (tr-auth)

Key concepts: Impurity, Analytical Chemistry (journal), Rare earth, Chemistry, Radiochemistry, Materials science, Mineralogy, Chromatography

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