Rapid Single-Step Detection of Hydrogen Peroxide Using Silver Nanoparticles

Abstract

Foods and beverages with nutritional value can have disastrous effects on health if adulterated. Present study reports application of silver nanoparticles
colloids in testing hydrogen peroxide adulteration in milk samples as a model system. A good level of sensitivity was established at concentration as low as
0.01 M of hydrogen peroxide. Concentration higher than the permissible level i.e. 0.1 % (w/v) or 0.29 M can also be detected qualitatively and quantitatively.
The method reported is very simple one-step, cost effective assay, as it requires no complex sample processing and is very rapid with visual detection.