2011
DOI: 10.1590/s0100-40422011000600014
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Determinação de peróxido de hidrogênio em antisséptico bucal usando um microdispositivo contendo partículas de Azul da Prússia

Abstract: Recebido em 9/9/10; aceito em 16/12/10; publicado na web em 25/3/11 DETERMINATION OF HYDROGEN PEROXIDE IN ANTISEPTIC MOUTHWASH USING A MICRODEVICE CONTAINING PRUSSIAN BLUE PARTICLES. A simple flow-injection amperometric procedure using a three-electrode-integrated sensor for the determination of H 2 O 2 in antiseptic mouthwash is reported. This method involves the use of a working composite electrode modified with Prussian Blue (PB) particles that was easily adapted as detector in FIA. The best amperometric re… Show more

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Cited by 4 publications
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“…The association of methods for quality control of H 2 O 2 10 V can also be considered when there is doubt about a result or procedure [26].…”
Section: Discussionmentioning
confidence: 99%
“…The association of methods for quality control of H 2 O 2 10 V can also be considered when there is doubt about a result or procedure [26].…”
Section: Discussionmentioning
confidence: 99%
“…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.…”
Section: Introductionmentioning
confidence: 99%
“…The reliable determination of hydrogen peroxide in pharmaceutical and dental formulations requires robust, simple, rapid, and reproducible methods. The electrochemical detection of hydrogen peroxide can be performed by the direct oxidation at carbon and platinum electrodes (Moody, Sanghera, and Thomas 1986), but owing to the higher potential values (300 to 600 mV vs Ag/AgCl) applied to the working electrode, these electrodes suffer from interferences (Silva et al 2011). In order to overcome this drawback, different approaches based on chemical and electrochemical modifications of the working electrodes surfaces have been proposed (Valentini et al 2012;J.…”
Section: Introductionmentioning
confidence: 99%