ANALYTIC CONTROL OF THE CONTENT OF PLATINUM GROUP ELEMENTS IN MULTICOMPONENT SYSTEMS

摘要

The interaction of iridium (IV) with luteolin and the interaction of rhodium (III) with quercetin are investigated for the first time. We determine optimal conditions for the formation of these compounds and their metrological characteristics and selectivity in the presence of certain ions. On the basis of the results obtained, we develop new methods for the determination of the contents of iridium and rhodium, check them for artificial solutions, and test in the analysis of Tb_2Ir_3Al_9 and Gd_2Ir_3Al_9 intermetallic compounds and a rhodium-containing resistor (S_r ≤ 0.023).