Hydroxylamine electrochemical sensor based on magnesium aluminate spinel nanoparticles modified electrode

Hydroxylamine (HA) is a toxic and mutagenic molecule which are in the top list of environmental pollutants. We developed a sensitive HA electrochemical sensor constructed with electrocatalytic performance of magnesium aluminate spinel nanoparticles (MgAl2O4). The electrochemical activity of HA on magnesium aluminate spinel nanoparticles modified screen-printed electrode (MgAl2O4/SPE) was analysed by cyclic voltammetry (CV), linear sweep voltammetry (LSV), differential pulse voltammetry (DPV) and chronoamperometry. According to the findings, the modified electrode had admirable electrocatalytic performance towards HA. As-fabricated electrochemical sensor displayed an unparalleled performance in detection of HA with a low limit of detection (0.035 mu M, S/N = 3) in a lengthy linear dynamic range (0.09-375.0 mu M). The developed protocol was successful in sensing HA in water specimens, with satisfactory outcomes.

Automated summary

In this study, a sensitive HA electrochemical sensor was developed using the electrocatalytic performance of magnesium aluminate spinel nanoparticles. The modified electrode displayed admirable electrocatalytic performance towards HA, enabling successful detection of HA in water specimens with a low limit of detection.