“…It is widely used in environmental monitoring, advanced oxidation process for the degradation of pollutants, as a bleaching agent in cellulose and paper industries. This compound is also important in areas involving food, process monitoring, and formulations of oral hygiene (Mattos et al 2003), such as mouthwashes (Silva et al 2011) and dental whitening gels. H 2 O 2 can be determined by tritrimetry (Hurdis, 1954), spectrophotometry (Matsubara, Kawamoto, and Takamura 1992), fluorimetry (Li and Dasgupta, 2000), chemiluminescence (Nakashima et al 1991), and electrochemical methods (Ferapontova et al 2001;Sun et al 2007; W. J.…”