Selective electrochemical detection of dopamine in the presence of uric acid and ascorbic acid based on a composite film modified electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (71) ◽  
pp. 66468-66476 ◽  
Author(s):  
Li Zhang ◽  
Li Ning ◽  
Shaobin Li ◽  
Haijun Pang ◽  
Zhuanfang Zhang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Copper Oxide ◽  
Composite Film ◽  
Modified Electrode ◽  
Electrochemical Detection

An electrochemical dopamine sensor based on vanadium-substituted polyoxometalates, copper oxide and chitosan–palladium was fabricated by the LBL technique.

Simultaneous determination of ascorbic acid, dopamine and uric acid using poly(l-leucine)/DNA composite film modified electrode

2015 ◽  
Vol 213 ◽  
pp. 188-194 ◽  
Author(s):  
Xinyu Zheng ◽  
Yuheng Guo ◽  
Jinshuai Zheng ◽  
Xuechou Zhou ◽  
Qinglu Li ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Modified Electrode

A ZIF-8 derived nitrogen-doped porous carbon and nitrogen-doped graphene nanocomposite modified electrode for simultaneous determination of ascorbic acid, dopamine and uric acid

2019 ◽  
Vol 43 (43) ◽  
pp. 16819-16828 ◽  
Author(s):  
Guiling Luo ◽  
Ying Deng ◽  
Xiaoping Zhang ◽  
Ruyi Zou ◽  
Wei Sun ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Modified Electrode ◽  
Electrochemical Detection ◽  
Carbon And Nitrogen ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Graphene Nanocomposite

Simultaneous electrochemical detection of ascorbic acid, dopamine and uric acid by a nanocomposite modified electrode was realized.

scholarly journals Simultaneous Determination of Uric Acid and Xanthine Using a Poly(Methylene Blue) and Electrochemically Reduced Graphene Oxide Composite Film Modified Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao
Keyword(s):  
Methylene Blue ◽  
Uric Acid ◽  
Graphene Oxide ◽  
Composite Film ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.

Boron and Nitrogen Doped GrapheneviaMicrowave Exfoliation for Simultaneous Electrochemical Detection of Ascorbic Acid, Dopamine and Uric Acid

2016 ◽  
Vol 29 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Rozi Alice Thearle ◽  
Naziah Mohamad Latiff ◽  
Zdenek Sofer ◽  
Vlastimil Mazánek ◽  
Martin Pumera
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Detection ◽  
Nitrogen Doped
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