PERMANGANOMETRIC DETERMINATION OF IRON AN D TITANIUM BY FLOW-INJECTION ANALYSIS, FIA

An automated method by flow injection analysis was developed for the s imultaneous determination of iron and titanium in mixtures. The method is based in the design of a FIA manifold which includes selective red uction of the analytes using Cd and Ag microcolumns and the subsequent reaction with permanganate. The discoloration of permanganate is cont inuously recorded by a spectrophotometric detector. The determination of the species in mixtures shows results slightly less accurate and pr ecise than those determined by the manual method. However, the propose d method is twenty times faster.