Is investigated voltammeteric definition of iridium in acidic aqueous solutions. The impossibility of its definition of a straight line (cathode) voltammeteric is shown. The way of analysis of iridium in its electrolytes by method inversion voltammeteric is find: accumulation on the cathode of compounds of iridium in the lowest degrees of oxidation at a potential -0,70 V with the subsequent anode scanning of a potential in limens from - 0,70 In up to + 0,60 V.

Is founded, that most reproducible results are received after transformation of an iridium in chloridic complex and usage as indicator - of aurumgraphitic electrode. The error of definition of compounds of an iridium at its concentration from 10 up to 100 mg/dm³ equally 2-3%.