Teixeira, Milena Elias [UNESP]Sedenho, Graziela Cristina [UNESP]Stradiotto, Nelson Ramos [UNESP]2015-12-072015-12-072015Analytical Sciences : The International Journal Of The Japan Society For Analytical Chemistry, v. 31, n. 8, p. 773-780, 2015.1348-2246http://hdl.handle.net/11449/131322In this work the electrooxidations of glucose, galactose, mannose, rhamnose, xylose and arabinose are studied at a nickel hydroxide nanoparticle modified boron-doped diamond electrode and compared to an unmodified electrode. These carbohydrates are very important in the second-generation ethanol production process. Nickel hydroxide modified boron-doped diamond was characterized by scanning electron microscopy and energy dispersive X-ray. Electrochemical impedance spectroscopy was employed to study the interface properties of surface-modified electrodes in the absence and presence of the carbohydrates. Limits of detection were 5.3 × 10(-5), 6.8 × 10(-5), 2.7 × 10(-4), 6.9 × 10(-5), 8.8 × 10(-5) and 2.6 × 10(-5) mol L(-1) for glucose, galactose, mannose, rhamnose, arabinose, xylose, respectively.773-780engCarbohydratesNickelNanoparticlesModified boron-doped diamond electrodeVoltammetryArtigo10.2116/analsci.31.773Acesso restrito007217301800571226256600