D.C. Arc Emission Spectrographic Determination of Medium and Low Volatile Elements in U/sub 3/O/sub 8/ Using a Mixed Carrier : AgCl + SrF/sub 2/

摘要

An emission spectrographic method for the determination of impurities having wide range of volatilities has been developed using carrier distillation technique enabling simultaneous determination of refractory elements and other trace metals. To evolve a carrier composition suitable for this purpose different carriers with varying composition and proportions were investigated. These experiments have shown that 10 per cent mixture of AgCl+SrF/sub 2/ in 4:1 proportion gives the optimum results. The lowest limits of determination lie in the range 0.2 to 10 ppm based on 100 mg charge. 9 refs., 5 tables. (Atomindex citation 19:016435)