Simultaneous voltammetric detection of ascorbic acid, dopamine and uric acid using a pyrolytic graphite electrode modified into dopamine solution

2008 ◽  
Vol 612 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Robson P. da Silva ◽  
Antonio William O. Lima ◽  
Silvia H.P. Serrano
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Voltammetric Detection ◽  
Pyrolytic Graphite Electrode

An amperometric sensor for uric acid based on ordered mesoporous carbon-modified pyrolytic graphite electrode

2009 ◽  
Vol 63 (6) ◽  
Author(s):  
Yonggen Ma ◽  
Guangzhi Hu ◽  
Shijun Shao ◽  
Yong Guo
Keyword(s):  
Uric Acid ◽  
Mesoporous Carbon ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Ordered Mesoporous Carbon ◽  
Amperometric Sensor ◽  
Catalytic Current ◽  
Ordered Mesoporous ◽  
Amperometric Method ◽  
Pyrolytic Graphite Electrode

AbstractA novel amperometric sensor for uric acid based on ordered mesoporous carbon modified pyrolytic graphite electrode was developed. Uric acid oxidation was easily catalyzed by this electrode in a phosphate buffer solution at pH 7.0, with an anodic potential decrease about 140 mV compared to bare pyrolytic graphite electrode. The uric acid level was determined by the amperometric method, at a constant potential of 0.31 mV, the catalytic current of uric acid vs. its concentration showed a good linearity in the range of 1.0 × 10−6−1.0 × 10−4 mol L−1, with a correlation coefficient of 0.999. The detection limit was 4.0 × 10−7 mol L−1. The proposed method could be effectively used for uric acid amperometric sensing in human urine.

scholarly journals Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

2007 ◽  
Vol 23 (3) ◽  
pp. 283-289 ◽  
Author(s):  
Roohollah Torabi KACHOOSANGI ◽  
Craig E. BANKS ◽  
Xiaobo JI ◽  
Richard G. COMPTON
Keyword(s):  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Bismuth Film ◽  
Pyrolytic Graphite Electrode

Electrochemical investigations of 8-hydroxydeoxyguanosine and its determination at an edge plane pyrolytic graphite electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 1722-1728 ◽  
Author(s):  
Pankaj Gupta ◽  
Munetaka Oyama ◽  
Rajendra N. Goyal
Keyword(s):  
Detection Limit ◽  
Electrochemical Oxidation ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Low Detection Limit ◽  
Pyrolytic Graphite Electrode

Electrochemical oxidation of 8-hydroxydeoxyguanosine (8-OHdG) and its detection with low detection limit is reported at pyrolytic graphite electrode.

Sign in / Sign up

Export Citation Format

Share Document