Electrochemical detection of ascorbic acid (vitamin C) using a glassy carbon electrode
2004; Wiley; Volume: 48; Issue: 3 Linguagem: Inglês
10.1002/food.200300394
ISSN1521-3803
AutoresSuw Young Ly, Jung Ik Chae, Young Sam Jung, Woon Won Jung, Hye‐Jeong Lee, Seungho Lee,
Tópico(s)Analytical Chemistry and Sensors
ResumoA 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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