Notice of RetractionVoltammetric Determination of Norepinphrine on a Glassy Carbon Electrode Modified with Poly (L-Aspartic Acid)

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.

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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.