Ultrasensitive electrochemical sensing of the anticancer drug tirapazamine using an ordered mesoporous carbon modified pyrolytic graphite electrode

2009 ◽  
Vol 24 (11) ◽  
pp. 3391-3394 ◽  
Author(s):  
Guangzhi Hu ◽  
Yong Guo ◽  
Shijun Shao
Keyword(s):  
Anticancer Drug ◽  
Mesoporous Carbon ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Ordered Mesoporous Carbon ◽  
Electrochemical Sensing ◽  
Ordered Mesoporous ◽  
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.

Ordered Mesoporous Carbon Paste Electrodes for Electrochemical Sensing and Biosensing

2008 ◽  
Vol 20 (10) ◽  
pp. 1128-1134 ◽  
Author(s):  
Liande Zhu ◽  
Chunyuan Tian ◽  
Dongxia Zhu ◽  
Ruilan Yang
Keyword(s):  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Electrochemical Sensing ◽  
Carbon Paste ◽  
Carbon Paste Electrodes ◽  
Ordered Mesoporous
Sign in / Sign up

Export Citation Format

Share Document