scholarly journals P1.1.1 Voltammetric biosensors for the determination of paracetamol at carbon nanotube modified pyrolytic graphite electrode

2012 ◽  
Author(s):  
R. N. Goyal ◽  
Vinod Kumar Gupta ◽  
S. Chatterjee
Keyword(s):  
Carbon Nanotube ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Pyrolytic Graphite Electrode

scholarly journals Single-Walled-Carbon-Nanotube-Modified Pyrolytic Graphite Electrode Used as a Simple Sensor for the Determination of Salbutamol in Urine

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Rajendra N. Goyal ◽  
Sunita Bishnoi ◽  
Bharati Agrawal
Keyword(s):  
Carbon Nanotube ◽  
Human Urine ◽  
Graphite Electrode ◽  
Pyrolytic Graphite ◽  
Phosphate Buffer Solution ◽  
Calibration Plot ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Pyrolytic Graphite Electrode

A fast and sensitive voltammetric method has been proposed for the determination of salbutamol at single-walled-carbon-nanotube-modified edge-plane pyrolytic graphite electrode (SWNT/EPPGE) in human urine. The electrochemical response of salbutamol was determined by square wave voltammetry (SWV) in phosphate buffer solution (PBS) at physiological pH 7.2. The modified electrode showed improved voltammetric response towards the oxidation of salbutamol, and a well-defined anodic peak was observed at~600 mV with enhanced peak current in comparison to the bare electrode. Linear calibration plot using SWNT/EPPGE was obtained in the concentration range of 50 to 2500 ngml-1with sensitivity and detection limit of 2.15 nA/ngml-1and 4.31 ngml-1, respectively. The developed method has been successfully applied for the determination of salbutamol in commercial preparations and human body fluids. Fast analysis of salbutamol in human urine makes the proposed method of great interest for doping control purposes at the site of competitive games.

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
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