METHOD OF DETECTING RUTHENIUM (IV) IN PRESENCE OF OSMIUM (IV)

摘要

FIELD: chemistry. ^ SUBSTANCE: invention relates to detection of ruthenium (IV) in refining solutions, containing osmium (IV). The method involves preparation of a solution of ruthenium (IV) and osmium (IV) in hydrochloric acid, extraction of ruthenium (IV) from the solution in form of a complex compound on the surface of a sorbent and measurement of the diffuse reflection factor. The sorbent is silica gel, chemically modified with diethyldithiocarbamate groups. Ruthenium is extracted from the solution at 90C and the diffuse reflection factor of the ruthenium (IV) complex on the surface of the sorbent is measured at 380 nm. ^ EFFECT: increased selectivity and simplification of analysis. ^ 1 tbl