ICP-AES DETERMINATION OF SILVER AFTER CHEMICAL-SEPARATION FROM URANIUM MATRIX

The separation of silver from a uranium matrix has been carried out us ing Cyanex-471X (triisobutylphosphine sulphide) in xylene. The effects of various parameters such as the Cyanex-471X concentration, the nitr ic acid molarity, the contact time and the nitrate ion concentration o n the extraction of silver have been studied. The silver metal ion spe cies extracted into the organic phase was found to be Ag(NO3). 2S (whe re S is Cyanex-471X). The stripping of silver into an aqueous medium w as carried out with 5% NaHSO3, followed by its determination using ICP -AES.