Potentiometric Titration of Aluminum Using Aluminum Electrode

Abstract

A new method was proposed for determination of aluminum by potentiometric titration using sodium fluoride as complexing titrant agent. The aluminum electrode was electrochemically prepared by coating a platinum electrode under suitable conditions. The electrolyte was 0.1 M acetate buffer pH = 4.5. The lowest concentration detected was 0.180 ppm, with a relative standard deviation of ± 3.865 %.