ADSORPTION OF MICROAMOUNTS OF PLATINUM METAL ANIONIC COMPLEXES BY PAN-MVP FIBER

A study has been made of equilibrium adsorption isotherms of tetranitr odichloroiridate(III) and hexachloroplatinate(IV) anionic complexes by PAN-MVP anion-exchange fiber from aqueous solutions containing platin um metals in the concentration range from 5.10(-7) to 6.10(-5) M, cont aining 1 M Cl- and 0.1 M H+. The reasons have been revealed for tranfo rmation of isotherm equations when the metal concentration in the sorb ate is varied over a wide range. Experimental results demonstrate the feasibility of concentration of microamounts of platinum metals by PAN -MVP fiber.