Voltammetric determination of hydroxylamine using zinc ferrite nanoparticles/Mn(III) salen-doped carbon paste electrode

Modification of carbon paste electrode (CPE) with ZnFe2O4 nanoparticles and Mn(III) salen (ZFO/salen/CPE) and its application in the measurement of hydroxylamine (HX) are the topics of this work. Differential pulse voltammetry, chronoamperometry and cyclic voltam­metry (CV) were used in the investigations of the ZFO/salen/CPE for the electrochemical analysis of hydroxylamine. Because of the synergistic effect of the Mn(III) salen and ZnFe2O4 nanoparticles, the CV analyses showed improved catalytic behaviour of ZFO/salen/CPE toward the electrochemical reaction of HX. The linear range and HX detection limit were found to be 50 nM to 0.30 mM and 20 nM, respectively, using SWV. Long-term stability and reproducibility were demonstrated by this sensor. To confirm the sensor's appropriateness for use, HX measurement in water samples was carried out.