Abstract
A radiometric procedure for quantitative analysis of traces of silver in galena has been demonstrated. The mineral sample was dissolved in HNO3 (3∶1) and silver present in the solution was precipitated as insoluble AgI by adding an excess amount of131I-labeled KI solution and was coprecipitated with zirconium hydrogen phosphate, Zr(HPO4)2, in 0.5N H2SO4 medium. The method of radiometric analysis of silver which was estimated from the knowledge of the loss of131I activity in solution, was found to be effective in determination of the element even below ppb level. Applicability of the radiometric procedure in routine analysis or preconcentration of traces of silver in galena has been stressed.
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