The influencing mechanism of acidity on the oxidation peak currents of guanine and uric acid: hydrogen bond catalysis and degree of auxiliary electrode reduction reaction

Dopamine was oxidized at the 316L-PAIUCPE, while oxygen dissolved in the solution was reduced at the cathode (Pt). The H+released in the anode reaction compensated for H+consumed in the cathode reaction. The effect of the acidity on the degree of anode–cathode reaction was explored in detail.

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The Influencing Mechanism of Acidity on the Oxidation Peak Currents of Uric Acid and Ascorbic Acid at the PACPE by Cyclic Voltammetry

Journal of the Chinese Chemical Society ◽

10.1002/jccs.201400136 ◽

2015 ◽

Vol 62 (3) ◽

pp. 263-272 ◽

Cited By ~ 1

Author(s):

Li Jing ◽

Shangguan En-bo ◽

Li Quan-min

Keyword(s):

Ascorbic Acid ◽

Cyclic Voltammetry ◽

Uric Acid ◽

Oxidation Peak ◽

Influencing Mechanism

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Differential pulse voltammetry in vivo - evidence that uric acid contributes to the indole oxidation peak

Neuroscience Letters ◽

10.1016/0304-3940(83)90188-x ◽

1983 ◽

Vol 43 (2-3) ◽

pp. 203-207 ◽

Cited By ~ 84

Author(s):

Francesco Crespi ◽

Trevor Sharp ◽

Nigel Maidment ◽

Charles Marsden

Keyword(s):

Uric Acid ◽

Differential Pulse Voltammetry ◽

Differential Pulse ◽

Oxidation Peak ◽

Pulse Voltammetry

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Novel UIO-66-NO2@XC-72 nanohybrid as an electrode material for simultaneous detection of ascorbic acid, dopamine and uric acid

RSC Advances ◽

10.1039/c6ra26933h ◽

2017 ◽

Vol 7 (10) ◽

pp. 5628-5635 ◽

Cited By ~ 10

Author(s):

Wanqing Zhang ◽

Jun Chen ◽

Yuanchao Li ◽

Wenxiang Yang ◽

Yadong Zhang ◽

...

Keyword(s):

Hydrogen Bond ◽

Ascorbic Acid ◽

Uric Acid ◽

Synergistic Effect ◽

Electrode Material ◽

Simultaneous Detection ◽

Bond Effect

The UIO-66-NO2@XC-72 sensor exhibited excellent linear responses to AA, DA and UA due to the synergistic effect of UIO-66-NO2 and XC-72, as well as the hydrogen bond effect. The detection ranges were 0.2–3.5 μM for AA, 0.03–2.0 μM for DA and 0.75–22 μM for UA.

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Uric acid-derived Fe3C-containing mesoporous Fe/N/C composite with high activity for oxygen reduction reaction in alkaline medium

Journal of Power Sources ◽

10.1016/j.jpowsour.2017.11.091 ◽

2018 ◽

Vol 378 ◽

pp. 491-498 ◽

Cited By ~ 17

Author(s):

Jun Ma ◽

Dejian Xiao ◽

Chang Li Chen ◽

Qiaomei Luo ◽

Yue Yu ◽

...

Keyword(s):

Uric Acid ◽

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

High Activity ◽

Alkaline Medium ◽

Reduction Reaction

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Electrocatalytic Property Toward Dopamine and Uric Acid of the Nanoparticles TiO2 Modified Electrode

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.785-786.508 ◽

2013 ◽

Vol 785-786 ◽

pp. 508-511

Author(s):

Ying Zhang ◽

Guo Bao Li ◽

Qiu Xia Yang

Keyword(s):

Uric Acid ◽

Linear Relationship ◽

Glassy Carbon Electrode ◽

Modified Electrode ◽

Glassy Carbon ◽

Differential Pulse ◽

Carbon Electrode ◽

Oxidation Peak ◽

Good Electrocatalytic Activity

The titanium sol was prepared by depositing the organic titanium on glassy carbon electrode surface. Electrophoresis time and the applied voltage as well can markedly influence the electrochemical behavior of the nanoTiO2film. In contrast with bare glassy carbon electrode, the nanoTiO2film on glassy carbon electrode had a good electrocatalytic activity to dopamine (DA) and uric acid (UA) in PBS solution. The result showed that there was a linear relationship between the oxidation peak currents and the concentration of DA from 8.0×10-6to 4.0×10-4mol·L-1by differential pulse voltammetry (DPV) and there was a linear relationship between the oxidation peak currents and the concentration of UA from 8×10-6to 1.0×10-3mol·L-1. This modified electrode was quite effective to detect DA and UA in simultaneous determination of these species in a mixture.

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