A method is proposed for conducting a coulometric titration in a continuous flow of solution containing the analyte and the reagents for titrant generation where the titrant is generated in rectangular impulses of definite duration and different current magnitude. Coulometric titration was applied to redox titration reaction with Fe" obtained electrochemically from FelIr solution and solutions of K2Cr207, KMn04, Ce(S04)2 and NH4V03 were measured in the concentration range 1 x 10-4-1 x 10-2 equiv. 1-1, with relative standard deviations from 6.4

Standard metal-ion solutions for analytical purposes are obtained by electrochemical dissolution of a porous metal anode in a continuous flow of an appropriate supporting electrolyte. Dissolution is performed at a constant flow rate and a constant current. Different solution concentrations are achieved choosing proper current values. Standard solutions of Cr(VI), Cu(II), Ag(I), Zn(II), Bi(III), Sn(II), Fe(II), Pb(II), Co(II), and Ti(III) were generated. The standard solution concentrations as prepared were compared with the same solution concentrations made by the conventional way, and a statistical identity was proved.

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