1995
DOI: 10.1016/0022-0728(95)03867-g
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Characterization of carbohydrate oxidation at copper electrodes

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Cited by 162 publications
(108 citation statements)
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“…In addition, the spectra obtained after electrolysis in the dark and light appear somewhat different because the concentration of glucose is much lower after the 10-h electrolysis period with illumination. However, regardless of the electrolysis period, no new absorptions were observed in the 6.0-7.0 ppm region which would indicate the formation of glucuronic acid, indicating that the major product is formate, in agreement with Luo and Baldwin [19].…”
Section: Photo-induced Oxidation Of Glucose At the Composite Electrodesupporting
confidence: 81%
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“…In addition, the spectra obtained after electrolysis in the dark and light appear somewhat different because the concentration of glucose is much lower after the 10-h electrolysis period with illumination. However, regardless of the electrolysis period, no new absorptions were observed in the 6.0-7.0 ppm region which would indicate the formation of glucuronic acid, indicating that the major product is formate, in agreement with Luo and Baldwin [19].…”
Section: Photo-induced Oxidation Of Glucose At the Composite Electrodesupporting
confidence: 81%
“…As the concentration of glucose is relatively high, the electrolysis period gives rise to only small decreases in the concentration of glucose; with the concentration falling to lower values under illumination conditions. The peak centred at 8.2 ppm, which is only observed following electrolysis, is attributed to formate and has been observed previously by Luo and Baldwin [19]. This formation of formate indicates that complete C-C bond cleavage occurs.…”
Section: Photo-induced Oxidation Of Glucose At the Composite Electrodesupporting
confidence: 79%
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“…, la cual también está asociada a la evolución de oxígeno (d), el pico a -0.538 V es debido a la reducción de Cu +2 a Cu + (e) y el situado a -0.830 V indica la reducción de Cu + a Cu 0 (f) 9,19,[23][24][25][26][27] . Las características de este voltamograma, incluido el área de los picos, dependen principalmente de la concentración de la base, del pH y de la velocidad de barrido de potencial.…”
Section: +2unclassified
“…En la mayoría de los casos, estos electrodos trabajan amperometricamente, el analito forma complejos con los iones Cu +2 por lo que la concentración de dicho analito influye en la velocidad de generación del cobre 18 . También se ha estudiado el caso en que el analito es oxidado electroquímicamente en la superficie del electrodo en medio alcalino, este proceso involucra la formación de especies catalíticas de cobre 9,18,19 . En las determinaciones con cobre, es común que el electrodo sea pretratado catodicamente para limpiar la superficie y generar una capa de cobre activa, posteriormente es polarizado a un potencial positivo en un pH básico para formar una capa de oxido/hidróxido.…”
Section: Introduccionunclassified