Heat and light sensitivity of ascorbic acid studied at carbon paste electrode

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F14%3A39898763" target="_blank" >RIV/00216275:25310/14:39898763 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Heat and light sensitivity of ascorbic acid studied at carbon paste electrode
Original language description
Ascorbic acid, known as vitamin C, interferes significantly in determinations of numerous clinically important organic compounds (glucose, dopamine, cholesterol, etc.) where enzymatic biosensors based on oxidoreductases are used. Sensitivity of ascorbicacid to increased temperature and light could be useful for its elimination from samples. Ascorbic acid is an electroactive substance which can simply be oxidized at carbon paste electrode to dehydro-L-ascorbic acid in acidic or neutral media. Concerningcyclic voltammetry in this study, following parameters were adjusted: potential range, -0.4 to +1.0 V vs. Ag|AgCl|3.0 M KCl; scan rate, 50 mV s?1; potential step, 5 mV; number of scans, n=5-10. All experiments were performed with 1.0x10-3 M ascorbic acid solutions in 0.1 M phosphate buffer (pH 7.0; 25 +- 1 °C).
Czech name
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Czech description
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Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Monitorování cizorodých látek v životním prostředí XVI., sborník příspěvků ze semináře
ISBN
978-80-7395-821-3
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
93-100
Publisher name
Univerzita Pardubice
Place of publication
Pardubice
Event location
Ovčárna pod Pradědem
Event date
Apr 9, 2014
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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