DocumentCode
3320119
Title
Notice of Retraction
Voltammetric Determination of Norepinphrine on a Glassy Carbon Electrode Modified with Poly (L-Aspartic Acid)
Author
Zhangyu Yu ; Xueliang Wang ; Xiaochun Li ; Kewei Cao ; Jinjin Li
Author_Institution
Dept. of Chem. & Eng., Heze Univ., Heze, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
A convenient and sensitive method for voltammetric determination of norepinphrine (NE) on a glassy carbon electrode (GCE) modified with poly(L-aspartic acid) was set up. The modified electrode exhibits excellent electro-catalytic activities for the oxidation-reduction of NE, as well as eliminating the interference of ascorbic acid (AA) and uric acid (UA). Factors influencing the detection processes were optimized and the kinetic parameters were calculated. Under the optimal conditions, the anodic peak currents of NE were linear with its concentration, and the detection limits are estimated to be 4.31×10-9 mol L-1(S/N=3). The practical application of this method was demonstrated by determining the concentration of NE in injection commercially available with satisfactory results. Compared with other electrochemical methods had been reported, this method is simplicity, high selectivity and sensitivity.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
A convenient and sensitive method for voltammetric determination of norepinphrine (NE) on a glassy carbon electrode (GCE) modified with poly(L-aspartic acid) was set up. The modified electrode exhibits excellent electro-catalytic activities for the oxidation-reduction of NE, as well as eliminating the interference of ascorbic acid (AA) and uric acid (UA). Factors influencing the detection processes were optimized and the kinetic parameters were calculated. Under the optimal conditions, the anodic peak currents of NE were linear with its concentration, and the detection limits are estimated to be 4.31×10-9 mol L-1(S/N=3). The practical application of this method was demonstrated by determining the concentration of NE in injection commercially available with satisfactory results. Compared with other electrochemical methods had been reported, this method is simplicity, high selectivity and sensitivity.
Keywords
anodisation; biochemistry; biosensors; catalysis; electrochemical electrodes; electrochemical sensors; electrochemistry; oxidation; polymers; reaction kinetics; reduction (chemical); voltammetry (chemical analysis); anodic peak currents; ascorbic acid; detection limits; detection processes; electrocatalytic activities; electrochemical methods; glassy carbon electrode; kinetic parameters; norepinphrine; oxidation; poly(L-aspartic acid); reduction; uric acid; voltammetric determination; Biosensors; Carbon; Electric potential; Electrodes; Equations; Interference; Materials;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5780173
Filename
5780173
Link To Document