Determination of caffeine and glucose in selected energy drinks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912549" target="_blank" >RIV/00216275:25310/18:39912549 - isvavai.cz</a>
Result on the web
<a href="https://dk.upce.cz/bitstream/handle/10195/71970/03%20-%20Pravcov%c3%a1%20et%20al.pdf?sequence=1&isAllowed=y" target="_blank" >https://dk.upce.cz/bitstream/handle/10195/71970/03%20-%20Pravcov%c3%a1%20et%20al.pdf?sequence=1&isAllowed=y</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Determination of caffeine and glucose in selected energy drinks
Original language description
The aim of this study was to monitor the caffeine and glucose content in several energy drinks. The caffeine was determined by (direct) differential pulse voltammetry at a glassy carbon paste electrode in 0.5 mol L-1 sulfuric acid at a potential step of 5 mV, potential amplitude of 40 mV, and the scan rate of 50 mV s-1. The content of glucose was determined using amperometric glucose biosensor in 0.1 mol L-1 phosphate (pH 7.0) buffer solution at a constant voltage of +0.4 V and stirring speed of 400 min-1. The selected samples were analysed and the results obtained compared to those declared by manufactures. Except to three samples, namely "Monster", "Red Bull" (without sugar) and "Spark", the individual results were in good agreement with the declared amounts. Moreover, based on the analyses performed, it can be stated that the energy drinks "Big Shock!" and "Red Bull" are the best source of energy when considering the found total sugar via the glucose content.
Czech name
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Czech description
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Classification
Type
J<sub>ost</sub> - Miscellaneous article in a specialist periodical
CEP classification
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OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology
ISSN
1211-5541
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
November
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
8
Pages from-to
31-38
UT code for WoS article
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EID of the result in the Scopus database
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