Use of selective extraction chromatographic columns as an alternative to solvent extraction for the separation of uranium followed by the use of Arsenazo III as a colorimetric reagent for uranium determination

摘要

The use of U/TEVA(reg sign) Spec columns as an alternative to solvent extraction for separation of uranium prior to its determination by various techniques (calorimetric, phosphorescence, and mass spectroscopy) was investigated. U/TEVA(reg sign) Spec columns have several advantages over the widely used 4-methyl-2-pentanone solvent extraction method. This study also investigated the use of Arsenazo III (1,8-dihydroxynapthalene- 3,6-disulfonic acid-2,7-bis (<-azo-2>-phenylarsonic acid)) as a calorimetric reagent to determine uranium concentrations over a wide range in waste streams and product streams at the Idaho Chemical Processing Plant.