hi,

In Fenton's reaction, the ferrous and/or ferric cation decomposes catalytically hydrogen peroxide to generate powerful oxidizing agents, capable of degrading a number of organic and inorganic substances.

Many popular methods to assess antioxidant activity are based on the competitive reaction of radicals with the antioxidant or with a probe, whose transformation can be monitored by fluorimetry (e.g., the ORAC assay), by spectrophotometry (e.g., the crocin bleaching assay), EPR (e.g., spin-trapping methods)

For more info:

https://www.mdpi.com/1422-0067/22/7/3380/pdf

Best wishes

Dear Crina,

Here are some citations about this topic:

Andreozzi, R., Caprio; V.; Insola, A.; Marotta, R. (1999), “Advanced oxidation processes (AOP) for water purification and recovery”, Catalysis Today 53, 51-59, https://doi.org/10.1016/S0920-5861(99)00102-9

Aziz H. A.; Amr, S. A; Salem S. (Eds.) (2019), “Advanced oxidation processes (AOPs) in water and wastewater treatment”, IGI Global, https://doi.org/10.4018/978-1-5225-5766-1

Deng, Y.; Zhao, R. (2015), “Advanced oxidation processes (AOPs) in wastewater treatment”, Curr Pollution Rep 1, 167–176. https://doi.org/10.1007/s40726-015-0015-z

Dewil, R.; Mantzavinos, D., Poulios, I., Rodrigo, M. A. (2017), “New perspectives for Advanced Oxidation Processes”, Journal of Environmental Management, 195, 93-99, https://doi.org/10.1016/j.jenvman.2017.04.010

He, J.; Jang, X.; Men, B.; Wang, D. (2016), “Interfacial mechanisms of heterogeneous Fenton reactions catalyzed by iron-based materials: A review”, Journal of Environmental Sciences 39, 97-109, https://doi.org/10.1016/j.jes.2015.12.003

Best regards,

Attila Baranyi

C K Gomathy thanks for the answer

Attila Baranyi thanks for your suggestions