SELECTIVE EXTRACTION-SPECTROPHOTOMETRIC DETERMINATION OF TRACES OF PALLADIUM IN CATALYSTS

The simple, sensitive, and highly selective determination of palladium is based on the reaction between Pd(II) and 1,2-bis[methyl(2-aminocyc lopentene carbodithioate)] ethane and extraction of the complex into d ichloromethane. Beer's law is obeyed in the concentration range 0.19-1 0 mu g ml(-1) Pd. Relative standard deviations were 0.7-1.1%. The proc edure has been successfully applied to the determination of palladium in different samples of catalysts. (C) 1997 Academic Press.