A simple, rapid and sensitive analytical method for the determination of hydroxylamine in water samples using modified glassy carbon electrode

Electroanalytical overview: the sensing of hydroxylamine

“…Another approach is the use of nitrogen-doped hollow carbon spheres (N-HCSs) for the sensing of hydroxylamine over the range 10 to 100 μM with a LOD reported to be 3 μM. 27 HCS are used in electrochemistry due to their reported properties which include low specific density, large specific surface area, admirable mechanical strength and reduced transport length for mass and charge transport. 27 The authors chose to utilize N-HCSs, where the use of nitrogen is to increase the electrocatalytic behaviour of HCSs due to charge polarization and the difference in electronegativity and electron spin density between carbon and the nitrogen heteroatom.…”

“…27 HCS are used in electrochemistry due to their reported properties which include low specific density, large specific surface area, admirable mechanical strength and reduced transport length for mass and charge transport. 27 The authors chose to utilize N-HCSs, where the use of nitrogen is to increase the electrocatalytic behaviour of HCSs due to charge polarization and the difference in electronegativity and electron spin density between carbon and the nitrogen heteroatom. The authors utilized a silica template method to form the N-HCSs which have a diameter of 170 nm and successfully measured hydroxylamine within spiked river and tap water observing a recovery of 97–102.7%.…”