Simultaneous determination of ascorbic acid, dopamine and uric acid by a novel electrochemical sensor based on N 2 /Ar RF plasma assisted graphene nanosheets/graphene nanoribbons

2018 ◽  
Vol 105 ◽  
pp. 236-242 ◽  
Author(s):  
Lavanya Jothi ◽  
Sudarsan Neogi ◽  
Saravana kumar Jaganathan ◽  
Gomathi Nageswaran
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Graphene Nanoribbons ◽  
Graphene Nanosheets ◽  
Rf Plasma

3DGH-Fc based electrochemical sensor for the simultaneous determination of ascorbic acid, dopamine and uric acid

2017 ◽  
Vol 799 ◽  
pp. 459-467 ◽  
Author(s):  
Qing Zhu ◽  
Jing Bao ◽  
Danqun Huo ◽  
Mei Yang ◽  
Huixiang Wu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Sensor ◽  
Simultaneous Determination

Electrochemical sensor based on nitrogen doped graphene: Simultaneous determination of ascorbic acid, dopamine and uric acid

2012 ◽  
Vol 34 (1) ◽  
pp. 125-131 ◽  
Author(s):  
Zhen-Huan Sheng ◽  
Xiao-Qing Zheng ◽  
Jian-Yun Xu ◽  
Wen-Jing Bao ◽  
Feng-Bin Wang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Direct Electrodeposition to Fabricate Vertically-Oriented Graphene Nanosheets Modified Electrode and its Application for Determination of Levodopa in the Presence of Uric Acid and Ascorbic Acid

NANO ◽  
2017 ◽  
Vol 12 (07) ◽  
pp. 1750087 ◽  
Author(s):  
Yanju Wu ◽  
Huijun Song ◽  
Kui Lu ◽  
Yong Ye ◽  
Mingxiu Lv ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Modified Electrode ◽  
Graphene Nanosheets ◽  
Potential Method ◽  
Vertical Orientation ◽  
Reduced Graphene

The electrodeposition of reduced graphene oxide (rGO) film with preferred vertical orientation was fabricated on a glassy carbon electrode by using pulse potential method in a graphene oxide solution. The rGO film was applied in developing a high-sensitive electrochemical sensor for detection of levodopa (L-dopa). The new electrochemical sensor displayed a significant response to L-dopa because of its excellent electric conductivity and large specific surface area. Moreover, the determination of L-dopa on this modified electrode was not interfered by the coexistence of ascorbic acid (AA) and uric acid (UA). Under the selective conditions, the modified electrode showed a linear voltammetric response to L-dopa within a certain concentration ranging from [Formula: see text][Formula: see text] mol L[Formula: see text], with the detection limit of [Formula: see text] mol L[Formula: see text]. Besides, the modified electrode also exhibited an excellent selectivity, stability, reproducibility and repeatability.

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