Atomic-absorption analysis used for determination of Ge and Bi in germanium and bismuth oxides and wastes in the production of bismuth ortho-germanate crystals

摘要

Methods for atomic-absorption determination of germanium and bismuth in waste products of the production of bismuth ortho-germanate crystals are described. The relative standard deviations for bismuth analyzed in flame-atomized solutions (20-200 μg/ml) are 0.02 - 0.03 and for germanium (20 - 500 μg/ml)-0.015-0.04. Use of the electrothermal atomization techniques allows germanium and bismuth to be determined in the range 0.01 - 1.0 μg/m1.