An innovative organic phase enzyme electrode (OPEE) for the determination of ethanol in leadless petrols

Catalytic fuel cell used as an analytical tool for methanol and ethanol determination. Application to ethanol determination in alcoholic beverages

“…Nevertheless, these works deal essentially, as we have seen, with the development of original, and often very interesting, devices [16,17], or else provide a detailed description of the various operating modes [21], rather than evaluate the real potential of simple and thus cheap DMFCs to be used for essentially analytical purposes and their effective application in the analysis of real matrixes, or even for the comparison with other types of electroenzymatic sensors already widely used in the field of methanol or ethanol analysis. Therefore, in recent years our research group has developed different sensors for ethanol (and methanol) determination using biosensors working in aqueous [22] or organic solvent [23]. Our team have now investigated the feasibility of using a small commercial direct catalytic methanol 'fuel cell', originally constructed for the purpose of obtaining energy from methanol or ethanol, for analytical purposes.…”

Electrochemical Determination of Organic Compounds in Automotive Fuels

“…Currently, besides the use of anhydrous ethanol as additive, hydrated ethanol is used as fuel in Brazil not only in its pure form but also blended with gasoline in any proportion in flex‐fuel engines. Moreover, ethanol has become an important additive for gasoline in other regions such as USA and European Union 64, 67. Therefore, the development of analytical methods able to quantify ethanol in gasoline is highly desirable.…”

“…Campanella et al. 64 have developed a catalase biosensor that was employed for ethanol quantification in gasoline by using amperometric detection. This biosensor was very sensitive and selective towards ethanol, allowing its determination in gasoline without any sample pretreatment procedure.…”

Estudo De Viabilidade Do Uso Da Enzima Catalase, Depositada Em Superfície De Carbono Junto Com Líquido Iônico Prótico, Para a Construção De Um Bioletrodo

“…(Oliveira Neto et al 2006) Poucas publicações encontram-se na literatura onde se utiliza a catalase diretamente para oxidar o etanol, como é o caso do trabalho de Akyilmaz e Dinçkaya, (2003), que desenvolveram um biosensor baseado na catalase imobilizada para a determinação de etanol em bebidas. Campanella et al (2010) também desenvolveram um biosensor para determinar concentrações de etanol em gasolinas livres de chumbo. Os dois trabalhos correlacionam a resposta da enzima com a produção de O 2 , medido por um eletrodo amperométrico tipo Clark.…”