holder

ATTENTION: This site is down for maintenance in read-only mode.

The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.


Determination of Cadmium in Pure Zirconium by Inductively Coupled Plasma-Atomic Emission Spectroscopy

Volume 38, Number 2 (April 1984) Page 284-285

Jing, Lu Shang; Barnes, Ramon M.


Zirconium materials are important and high purity is required in many fields of technology. The maximum allowable impurity concentration in nuclear grade zirconium is <100 μg/g for most elements, but <0.4 μg/g of cadmium is essential owing to its large neutron capture cross section. Cadmium in zirconium has been determined routinely by numerous techniques including emission spectroscopy. Dithizone-methylisobutylketone (MIBK), dithizone-chloroform, and sodium diethyl dithiocarbamate-chloroform were used to separate and concentrate cadmium in high-purity zirconium. Solvent extraction with ammonium pyrrolidine dithiocarbamate (APDC) is widely used for a variety of materials, because it allows a multi-element analysis of a single extract over a wide pH range. Back extraction from APDC-MIBK is seldom applied.