Chemical Separation and Spectrographic Determination of Trace Amounts of Rare Earths in Uranium Using LiF–AgCl Carrier

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

An emission spectrographic method is described for the determination of certain rare earths—Ce, Sm, Eu, Gd, Dy, Ho, Er, Yb, and Lu—at fractions of ppm concentration in uranium samples using LiF–AgCl–graphite powder mixture as carrier. The rare earths chemically separated from uranium were excited in a dc arc. Thulium was used as an internal standard. The detection limits in ppm on the basis of 5 g uranium sample are: Yb 0.004; Eu, Gd, Er 0.02; Dy, Lu 0.05; Sm, Ho, 0.2; and Ce 0.5. The precision of the method expressed as a coefficient of variation is estimated to be ±9%. The effect of 14 nonrare earth elements on the intensity of analysis lines was investigated.

Keywords: Carrier technique; Emission spectroscopy; Rare earths in uranium

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370270774372434

Affiliations: Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Bombay 85, India

Publication date: November 1, 1970

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more