Abstract
A method is described for determination of silver, which eliminates cupellation. The sample is fused with lead flux and the resulting lead assay button is parted with perchloric acid after heating at ca. 180°C. Complete precipitation of silver chloride is attained by dilution and overnight standing. After filtration and dissolution of the precipitate in ammonia, silver is determined by atomic absorption spectrometry. Results on samples of varying nature and composition are higher than those obtained by the classical lead-cupellation method.
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