Electrochemical sensor for ascorbic acid based on graphene/CuPc/PANI nanocomposites
- Resource Type
- Conference
- Authors
- Pakapongpan, Saithip; Mensing, Johannes Philipp; Lomas, Tanom; Tuantranont, Adisorn
- Source
- 2012 IEEE International Conference on Electron Devices and Solid State Circuit (EDSSC) Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on. :1-3 Dec, 2012
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Communication, Networking and Broadcast Technologies
Computing and Processing
Power, Energy and Industry Applications
Graphene
Nanobioscience
Compounds
Polymers
Calibration
graphene
PANI
copper phthalocyanine
ascorbic acid
electrochemical sensor
- Language
In this work, the electrochemical sensor based on graphene/ copper phthalocyanine(CuPc)/ polyaniline(PANI) nanocomposite modified screen printed electrode(SPE) for detection of ascorbicacid (AA) was successfully fabricated. Copper phthalocyanine was immobilized on graphene by using PANI as a matrix. The nanocomposites were characterized by electrochemical techniques such as cyclic voltametry. The sensor exhibited a linear range from 100 µM to 3.6 mM (a correlation coefficient of 0.9967). The sensitivity of the sensor was found to be 22.92 mA M −1 cm −2 and the limit of detection was 8.3 µM (S/N = 3). Moreover, this sensor exhibited good electrocatalytic properties and lower the potential for the oxidation of ascorbic acid which makes it a suitable sensor for detection of ascorbic acid. The performance of this sensor could provide a promising platform for the sensor or biosensor designs for AA detection.