Community Research and Development Information Service - CORDIS

Abstract

Controlled potential coulometry is considered to be a reliable method for the determination of the uranium and/or plutonium content of candidate reference materials. Although base materials selected for that purpose have a high purity, they nevertheless contain traces of metallic impurities such as copper, iron and molybdenum which interfere in the electrochemical processes involved. The behaviour of these elements during the pre-electrolysis and electrolysis of uranium solutions has been studied. A coulometer designed for high precision analysis has been tested under various conditions and for various materials. The ultimate precisions obtainable with the instrument lie in the range of 0.01 to 0.05 % relative or overall uncertainties, depending mainly on the analyte (U or Pu) and on its purity.

Additional information

Authors: LE DUIGOU Y, JRC Geel (BE);LEIDERT W, JRC Geel (BE);BICKEL M, JRC Geel (BE)
Bibliographic Reference: Article: Fresenius' Journal of Analytical Chemistry, Vol. 351 (1995) pp. 499-506
Record Number: 199510850 / Last updated on: 1995-08-03
Category: PUBLICATION
Original language: en
Available languages: en