Simultaneous Determination of Caffeine and Pyridoxine in Energy Drinks using Differential Pulse Voltammetry at Glassy Carbon Electrode Modified with Nafion (R)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914606" target="_blank" >RIV/00216275:25310/19:39914606 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/elan.201800646" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/elan.201800646</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/elan.201800646" target="_blank" >10.1002/elan.201800646</a>
Alternative languages
Result language
angličtina
Original language name
Simultaneous Determination of Caffeine and Pyridoxine in Energy Drinks using Differential Pulse Voltammetry at Glassy Carbon Electrode Modified with Nafion (R)
Original language description
A new voltammetric method for simultaneous determination of caffeine and pyridoxine present in different types of commercial energy drinks has been developed. This electroanalytical method is based on anodic oxidation of these biologically active nitrogen-containing heterocycles at glassy carbon electrode covered with thin layer of sulfonated fluoropolymer Nafion® using differential pulse voltammetry in 0.1 M Britton-Robinson buffer of pH 4.5 at potential step 5 mV, potential amplitude 70 mV, and scan rate 50 mV/s. Linear ranges for caffeine and pyridoxine determination were 63.1-600 µM and 7.5-200 µM with the detection limits of 18.9 and 2.2 µM, respectively. It was validated using high-performance liquid chromatography with spectrophotometric detection. Obtained results have shown that voltammetric approach is very simple and low-cost analytical method which can be used for routine determination of caffeine and pyridoxine in energy drinks.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
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
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Electroanalysis
ISSN
1040-0397
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
8
Country of publishing house
DE - GERMANY
Number of pages
6
Pages from-to
1511-1516
UT code for WoS article
000479081100012
EID of the result in the Scopus database
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