Electrochemical detection of ascorbic acid (vitamin C) using a glassy carbon electrode

✍ Scribed by Ly, Suw Young ;Chae, Jung Ik ;Jung, Young Sam ;Jung, Woon Won ;Lee, Hye Jeong ;Lee, Seong Ho

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 364 KB
• Volume: 48
• Category: Article
• ISSN: 0027-769X
• DOI: 10.1002/food.200300394

✦ Synopsis

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 μg/L with a preconcentration time of 270 s. The relative standard deviation of 30.0 μg/L observed was 0.1016% (n = 12) under optimum conditions. The low detection limit (S/N) was pegged at 0.30 μg/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.