Direct Determination of Vitamin C in Fru
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Jyh-Myng Zen; Dong-Mung Tsai; Hsueh-Hui Yang
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Article
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2002
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John Wiley and Sons
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English
⚖ 114 KB
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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