<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Two new group separation schemes, based on ion exchange chromatography, for the selective and quantitative isolation of rare earth elements (REE) from accompanying elements, were devised. After checking their performance with the aid of radioactive tracers, the schemes were further used together with ICP-MS, NAA and ion exchange chromatography for the determination of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu in two certified reference materials (CRMs). The results were compared with another series of analyses, where the REEs were determined directly, i.e. without pre-separation, by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS). It was demonstrated that while direct INAA and ICP-MS in most instances provide reliable results for the majority of REEs, for some elements, notably Sc, Yb and Tm in the cases of ICP-MS and INAA, respectively, systematic errors occur or may potentially occur.</p></abstract>

Two new group separation schemes, based on ion exchange chromatography, for the selective and quantitative isolation of rare earth elements (REE) from accompanying elements, were devised. After checking their performance with the aid of radioactive tracers, the schemes were further used together with ICP-MS, NAA and ion exchange chromatography for the determination of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu in two certified reference materials (CRMs). The results were compared with another series of analyses, where the REEs were determined directly, i.e. without pre-separation, by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS). It was demonstrated that while direct INAA and ICP-MS in most instances provide reliable results for the majority of REEs, for some elements, notably Sc, Yb and Tm in the cases of ICP-MS and INAA, respectively, systematic errors occur or may potentially occur.

Two new separation schemes for the group isolation of rare earth elements (REE) from biological and other matrices and their determination by ICP-MS, NAA and chromatographic methods

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Two new group separation schemes, based on ion exchange chromatography, for the selective and quantitative isolation of rare earth elements (REE) from...

Two new separation schemes for the group isolation of rare earth elements (REE) from biological and other matrices and their determination by ICP-MS, NAA and chromatographic methods

Published Online: Jul 22, 2017

Page range: 199 - 211

Received: Nov 18, 2016

Accepted: Feb 09, 2017

DOI: https://doi.org/10.1515/nuka-2017-0030

Keywords
rare earth elements (REE), lanthanides, ion exchange chromatography, NAA, ICP-MS, accuracy, certified reference maerials (CRM)

© by Rajmund S. Dybczyński

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Two new separation schemes for the group isolation of rare earth elements (REE) from biological and other matrices and their determination by ICP-MS, NAA and chromatographic methods

Published Online: Jul 22, 2017

Page range: 199 - 211

Received: Nov 18, 2016

Accepted: Feb 09, 2017

DOI: https://doi.org/10.1515/nuka-2017-0030

Keywordsrare earth elements (REE), lanthanides, ion exchange chromatography, NAA, ICP-MS, accuracy, certified reference maerials (CRM)

© by Rajmund S. Dybczyński

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
rare earth elements (REE), lanthanides, ion exchange chromatography, NAA, ICP-MS, accuracy, certified reference maerials (CRM)