Abstract
The determination of chromium, cobalt, iron, manganese and nickel by atomic absorption spectrophotometry in silver and silver alloys has been investigated. Samples containing from 2 μg to more than 500 μg in a two-gram sample of silver can be determined by using the same procedure. A series of twenty samples for each element at different concentrations gave an average standard deviation from linear regression analysis of 2.1% for iron, 1.97% for chromium, 2.9% for nickel, 1.6% for manganese and 2.8% for cobalt. The time required for analysis of these five elements in a two-gram sample, including sample dissolution and standard preparation, is approximately three and a half hours.