The reductive ability was measured by the reduction of FeCl3 in presence of plant extracts.
Reductive ability was measured by the reduction of ferricyanide complex/Fe3+ to the ferrous form (Fe2+) in the presence of antioxidant (reductant).
Nanoscale zero-valent iron (nZVI) has high removal efficiency and strong reductive ability to organic and inorganic contaminants, but concerns over its stability and dispersity limit its application.
These reductive compounds have a stronger reductive ability than luminol, and competed with luminol for AgNO3, making that the generation of luminol radicals is decreased and leading to a weak CL signal.
In this study, the reductive ability was measured by investigating the Fe+3 → Fe transformation in the presence of various extracts of plants and standard antioxidant (BHA) by using the Oyaizu method [19].
As the volume ratio of EG/water in the reaction medium is lower than 30:10, the reductive ability of EG is too low to reduce the Fe3+ ions to Fe2+ ions, leading to the hematite α-Fe2O3 crystals.
Increasing absorbance indicates an increase in reductive ability [ 14].
Increasing absorbance at 700 nm indicates an increase in the reductive ability.
Increasing absorbance at 700 nm indicates an increase in reductive ability [ 45].
Fe3+ to Fe2+ transformation is taken as a measure of reductive ability [ 49, 54].
