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A selective catalytic voltammetric determination of vitamin C in pharmaceutical preparations and complex matrices of fresh fruit juices

✍ Scribed by M.H. Pournaghi-Azar; R. Ojani


Book ID
117223919
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
458 KB
Volume
44
Category
Article
ISSN
0039-9140

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A polyviologen-modified glassy carbon electrode (PV-GCE) was applied to directly determine vitamin C (i.e., ascorbic acid) in deeply colored, viscous, and turbid fruit juice samples. Compared to the results obtained at a bare GCE, the oxidation of vitamin C showed a large increase in current respons