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Proceedings in Radiochemistry

A Supplement to Radiochimica Acta

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Optimization of Nd(III) pre-concentration on a rotating disk mercury film electrode in aqueous solution

P. D. Schumacher / S. M. Miley / J. O. Schenk / S. B. Clark
Online erschienen: 08.09.2011 | DOI: https://doi.org/10.1524/rcpr.2011.0003


Current work indicates that trivalent lanthanides will consistently sorb to a rotating disk mercury film electrode in bulk aqueous solution thus allowing the user to pre-concentrate trivalent lanthanides for further separation. However, the mechanism of sorption to the mercury film is largely unknown, making it difficult if not impossible to predict a priori the conditions under which pre-concentration is optimized. In the present study, we explore some of the electrochemical factors affecting this pre-concentration process to optimize the technique for use in a wide variety of aqueous media. Trivalent neodymium (Nd(III)) is used as a model for the trivalent f-element cations. The factors investigated include pH of solution, rotation rate of the electrode, concentration of mercury, potential application waveforms, order of deposition, and time dependency.

Keywords: Mercury film electrode; Cyclic volammetry; Trivalent f-elements; Nuclear forensics; RDE


Online erschienen: 08.09.2011

Erschienen im Druck: 01.09.2011

Quellenangabe: Proceedings in Radiochemistry A Supplement to Radiochimica Acta, Band 1, Heft 1, Seiten 21–25, ISSN (Print) xxxx-xxxx, DOI: https://doi.org/10.1524/rcpr.2011.0003.

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