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  • Title: Electrochemical detection of ascorbic acid (vitamin C) using a glassy carbon electrode.
    Author: Ly SY, Chae JI, Jung YS, Jung WW, Lee HJ, Lee SH.
    Journal: Nahrung; 2004 Jun; 48(3):201-4. PubMed ID: 15285111.
    Abstract:
    A method for the detection of ascorbic acid (AA) was developed using square wave anodic stripping voltammetric (SWASV) analysis with a glassy carbon electrode (GCE). The results indicated a sensitive oxidation peak current of AA on the GCE. A linear curve was obtained within a concentration range of 1-130.0 microg/L with a preconcentration time of 270 s. The relative standard deviation of 30.0 microg/L observed was 0.1016% (n = 12) under optimum conditions. The low detection limit (S/N) was pegged at 0.30 microg/L. Results showed that the method developed can be used to assay biological and pharmaceutical samples, and food samples, as well as other materials requiring AA analyses.
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