Electrochemical Determination of N-acetylcysteine and Folic Acid in Pharmaceutical and Biological Samples Using a Modified Carbon Nanotube Paste Electrode

摘要

chlorobenzoyl ferrocene, was synthesized and used to construct a modified carbon nanotube pasteelectrode. The electrooxidation of N-acetylcysteine at the surface of the modified electrode wasstudied. Under the optimized conditions, the square wave voltammetric (SWV) peak current of N- acetylcysteine increased linearly with N-acetylcysteine concentration in the ranges of 5.0 10 to 4.0 10 M. The prepared modified electrode exhibits a very good resolution between the voltammetricpeaks of N-acetylcysteine and folic acid which makes it suitable for the detection of N-acetylcysteinein the presence of folic acid in real samples.