Voltammetric determination of hydrazine based on catalytic reaction in the presence of 4‐hydroxy‐2,2,6,6‐tetramethyl‐piperdinyloxy (TEMPOL) radical

A rapid, simple and highly sensitive voltammetric method was developed for the determination of hydrazine based on the electrochemical oxidation of hydrazine catalyzed by TEMPOL at a glassy carbon electrode at neutral medium. A linear calibration plot was obtained over the range of 1 × 10−6 M‐5 × 10−4 M. The detection limit was 1 × 10−6 M. The method was applied successfully to the determination of hydrazine in waste and river water.