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Your search keyword '"CHEMICAL purification"' showing total 1 results
Start Over Descriptor "CHEMICAL purification" Search Limiters Peer Reviewed Topic chromatographic analysis Topic high performance liquid chromatography Language english Journal journal of radioanalytical & nuclear chemistry
1 results on '"CHEMICAL purification"'

1. Purification of a Ho solution by successive high-performance liquid chromatography and gravitational chromatography for half-life determination.

Author

Guéguen, Florence, Isnard, Hélène, Kossert, Karsten, Bresson, Carole, Caussignac, Céline, Stadelmann, Guillaume, Nonell, Anthony, Mialle, Sébastien, and Chartier, Frédéric

Subjects
*CHEMICAL purification, *SOLUTION (Chemistry), *HOLMIUM, *HIGH performance liquid chromatography, *CHROMATOGRAPHIC analysis, *MASS concentrations (Astronomy)
Abstract

A methodology to purify a Ho solution has been developed by a combination of activity and mass concentration measurements in order to further determine the Ho half-life. The isobaric interference at m/ q ≃ 166 requires Ho purification from non-natural Er with a high purification degree due to the large amount of Ho as opposed to Er. The Ho/Er separation was achieved using high-performance liquid chromatography on a semi-preparative column followed by purification on gravitational chromatography. The efficiency of the separation was evaluated after precise determination of the Er isotopic composition. The purification methodology enabled to separate Ho from Er. [ABSTRACT FROM AUTHOR]

Published
2014
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