Determination of Traces of Certain Rare Earths in Uranium Compounds by Ion Exchange and Spectrography
Abstract:An ion exchange separation followed by a spectrographic determination has been developed for certain of the rare earths present in uranium compounds. This method permits the determination of dysprosium, erbium, europium, gadolinium, neodymium, samarium, and ytterbium at concentrations as low as 0.01 to 1 ppm. Hydrofluoric acid solution of uranium containing the rare earth elements, with yttrium as an internal standard, were passed through a cation exchanger. The negatively charged uranium fluoride complex passed through the column while the rare earths were retained. After the residual uranium was completely removed by eluting with 2.5 M hydrofluoric acid, the resin bed was ignited, and the resulting ash analyzed spectrographically for the individual rare earth elements. Other cations which separate with the rare earths were easily separated, when necessary, by standard, wet chemical, group separations The standard deviation for the method was about 10%.
Document Type: Research Article
Publication date: April 1, 1960
More about this publication?
- The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Request copyrighted SAS materials
- Spectroscopic Nomenclature
- Focal Point (Open Access)
- ingentaconnect is not responsible for the content or availability of external websites